# Uplift ## Docs - [Overview](https://docs.uplift.ai/home.md): Uplift Capture is a powerful biomechanical analysis platform that helps athletes, trainers, a… - [Sample Apps](https://docs.uplift.ai/samples/apps.md): Learn about the Uplift API Sample Repo and its tools for working with APIs and transforming 3… - [3D Data Transformation](https://docs.uplift.ai/samples/3d-data-transformation.md): A demo script that applies rotations and translations to 3D data. - [Instructions](https://docs.uplift.ai/biomechanics/instructions.md): How to use the Uplift Movement Library Documentation - [Movement Library](https://docs.uplift.ai/biomechanics/movements.md): Uplift Biomechanics Analysis Documentation - [Normative Ranges](https://docs.uplift.ai/biomechanics/normative-ranges.md): How to Interpret Uplift Normative Ranges - [Generic Outputs](https://docs.uplift.ai/biomechanics/activities/generic_outputs.md): Standard Joint Angles, Joint Velocities, and Keypoints. - [Biomechanics Glossary](https://docs.uplift.ai/biomechanics/activities/biomech_glossary.md): Standard terms and definitions across the Uplift Platform - [Pose QA & Biomech QA](https://docs.uplift.ai/biomechanics/activities/pose_biomech_qa.md): Ensuring quality outputs from automated processing. - [Introduction](https://docs.uplift.ai/api-reference/introduction.md): Overview of the Uplift API and authentication details - [Authentication](https://docs.uplift.ai/api-reference/authentication.md): Learn how to obtain and use authentication credentials for the Uplift API. - [Rate Limits](https://docs.uplift.ai/api-reference/rate-limits.md): Understand API rate limits, usage expectations, and best practices for managing requests. - [Retrieving Data in Batches](https://docs.uplift.ai/api-reference/retrieving-data-batches.md): Learn how to use limit and offset query parameters to control and paginate API requests effic… - [Filtering Athletes](https://docs.uplift.ai/api-reference/filtering-athletes.md): Learn how to use custom query parameters to filter API results based on specific attributes,… - [Filtering Metrics](https://docs.uplift.ai/api-reference/filtering-metrics.md): Learn how to use custom query parameters to filter export data API results for specific metri… - [Errors](https://docs.uplift.ai/api-reference/errors.md): HTTP status codes and what they mean when using the Uplift API. - [Create Export Job](https://docs.uplift.ai/api-reference/data/export/create.md): Initiates an asynchronous data export process and returns a job ID that clients can use to po… - [Get Job Status](https://docs.uplift.ai/api-reference/data/export/job/get.md): Retrieves the details and status of a job using the job ID. - [Get Job Results](https://docs.uplift.ai/api-reference/data/export/job/results/get.md): Retrieves the results of a completed job using the job ID. - [Create Capture](https://docs.uplift.ai/api-reference/captures/create.md): Reserves server-side resources for a video and returns a pre-signed Amazon S3 POST upload tar… - [List Captures](https://docs.uplift.ai/api-reference/captures/list.md): Returns a paginated list of captures for the organization with optional filters. Results are… - [Get Capture](https://docs.uplift.ai/api-reference/captures/get.md): Returns one capture by id for the organization. - [Create Athlete](https://docs.uplift.ai/api-reference/athletes/create.md): Creates a new athlete within an organization. The user must provide at least the `first_name`… - [Update Athlete](https://docs.uplift.ai/api-reference/athletes/update.md): Use this endpoint to update an athlete's attributes. You can modify all attributes, following… - [List Athletes](https://docs.uplift.ai/api-reference/athletes/list.md): Retrieves the information of athletes in an organization. - [Get Athlete Details](https://docs.uplift.ai/api-reference/athletes/get.md): Retrieves the information of an athlete in an organization. - [Delete Athlete](https://docs.uplift.ai/api-reference/athletes/delete.md): Delete an athlete and all associated data in an organization. - [5-0-5 Agility](https://docs.uplift.ai/biomechanics/activities/agility/5_0_5.md): Biomechanical analysis of the 5-0-5 change-of-direction agility drill, including sprint, dece… - [Baseball: Hitting](https://docs.uplift.ai/biomechanics/activities/baseball/hitting.md): Biomechanical analysis of baseball hitting movements, including events and metrics for body a… - [Baseball Hitting: Normative Ranges](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/baseball-hitting-norms.md): Full percentile reference tables (5th–95th) for baseball hitting metrics, broken out by compe… - [Ball Contact](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/ball-contact.md): The estimated timing of ball contact - determined by audio signal (primary) or swing through… - [Elbow Slot](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/elbow-slot.md): When the rear elbow drops downward in preparation for the arm swing. - [End Twist](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/end-twist.md): Finds the end of the twisting motion: after X Factor zero crossing, when X Factor velocity re… - [Foot Contact](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/foot-contact.md): The instant the front foot fully contacts the ground and begins accepting weight. - [Initiation](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/initiation.md): The initiation event marks when the lead foot begins to move prior to max knee raise. This ma… - [Max Foot Raise](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/max-foot-raise.md): The maximum height of the lead foot during the swing. This event marks the peak elevation of… - [Max X Factor](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/max-x-factor.md): The instant of maximum separation between shoulders and hips before the twisting motion of th… - [Peak Arm Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/peak-arm-ang-vel.md): The instant of lead arm peak angular velocity. - [Peak Pelvis Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/peak-pelvis-ang-vel.md): The instant of pelvis peak angular velocity. - [Peak Trunk Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/peak-trunk-ang-vel.md): The instant of trunk peak angular velocity. - [Peak Wrist Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/peak-wrist-angular-velocity.md): The instant of maximum wrist angular velocity during the swing. This represents the peak of t… - [Pelvis Velocity Initiation (Launch)](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/pelvis-velocity-initiation.md): The start of pelvis rotation - also known as launch event. Determined as the leading edge of… - [Pelvis Velocity Termination](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/pelvis-velocity-termination.md): The trailing edge of the pelvis angular velocity waveform. This marks the end of the pelvis r… - [Swing Through](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/swing-through.md): The instant the rear wrist passes in front of the lead wrist, corresponding to a batter commi… - [Twist](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/twist.md): The average timing of peak angular velocities for the pelvis, trunk, and arm. Used to identif… - [Wrist Initiation](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/wrist-initiation.md): The start of the wrist movement during the swing. Finds the last local minimum before peak wr… - [X Factor Zero Crossing](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/events/x-factor-zero-crossing.md): When the shoulder-hip separation crosses zero after Max X Factor. This marks the transition f… - [Attack Angle](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/attack-angle.md): Angle relative to forward horizontal that the bat sweet spot moves through in the frames lead… - [Attack Direction](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/attack-direction.md): Horizontal plane angle of the bat relative to the front of home plate, generally determines d… - [Ball Contact Method](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/ball-contact-method.md): Ball contact event detection method: [both audio, single audio, swing through]. This indicate… - [Bat Speed - Angular to Linear](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/bat-speed-angular-to-linear.md): Converted angular velocity to linear velocity. This measures the bat speed calculated from an… - [Bat Speed - Resultant Sweet Spot](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/bat-speed-resultant-sweet-spot.md): Linear velocity of bat sweet spot during the swing. This measures the actual bat speed at the… - [Body Center of Mass Position X](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/body-center-of-mass-x.md): Whole body center of mass X position - for use with keypoint positions. This is a time series… - [Body Center of Mass Position Y](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/body-center-of-mass-y.md): Whole body center of mass Y position (up/down) - for use with keypoint positions. This is a t… - [Body Center of Mass Position Z](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/body-center-of-mass-z.md): Whole body center of mass Z position - for use with keypoint positions. This is a time series… - [Connection at Impact](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/connection-at-impact.md): Horizontal plane angle of the bat relative to the batter's torso at the instant of ball conta… - [Drifting Forward](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/drifting-forward.md): Binary indicator of excessive forward movement, determine by whether the pelvis drifts forwar… - [Drifting Forward Magnitude](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/drifting-forward-magnitude.md): Distance drifted forward during the swing - see Drifting Forward movement flag. This quantifi… - [Elbow Flexion at Ball Contact](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/elbow-flexion-at-ball-contact.md): Amount of rear elbow flexion at ball contact event. This measures the elbow angle at the inst… - [Elbow Flexion at Launch](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/elbow-flexion-at-launch.md): Amount of rear elbow flexion at launch event. This measures the elbow angle at the start of t… - [Handedness](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/handedness.md): Handedness of the athlete ['right' or 'left'] as input parameter. This determines the swing s… - [Hip Hinge](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/hip-hinge.md): Max amount of rear hip flexion between max foot raise and foot contact events. - [Inter Elbow Distance at Ball Contact](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/inter-elbow-distance-at-ball-contact.md): Distance between the lead and rear elbows at ball contact event. This measures the separation… - [Inter Elbow Distance at Elbow Slot](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/inter-elbow-distance-at-elbow-slot.md): Distance between the lead and rear elbows at the elbow slot event. This measures the separati… - [Inter Elbow Distance at Trunk Peak](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/inter-elbow-distance-at-trunk-peak.md): Distance between the lead and rear elbows at the trunk peak angular velocity event. - [Kinematic Sequence Order](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/kinematic-sequence-order.md): Sequence of segment peak angular velocities (twist speed) during the swing. Correct sequencin… - [Knee Dominant](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/knee-dominant.md): Binary indicator if swing is knee-dominant, determined by comparing rear knee flexion with hi… - [Lateral Pelvis Tilt](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/lateral-pelvis-tilt.md): Binary indicator of excessive lateral pelvis tilt, determined by whether the pelvis tilts upw… - [Launch Position](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/launch-position.md): Launch position indicates how the bat is positioned relative to the spine when the swing begi… - [Lead Knee Angle at Ball Contact](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/lead-knee-angle-at-ball-contact.md): Amount of lead knee flexion at ball contact. This measures the knee angle of the front leg at… - [Leads With Wrist](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/leads-with-wrist.md): Binary indicator if wrist leads the swing: if wrist initiation event occurs before pelvis ini… - [Linear Stretch](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/linear-stretch.md): Distance between the lead ankle and center of both wrists along the pitch direction at foot c… - [Max X Factor](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/max-x-factor.md): Max amount of twist hip shoulder separation during the swing. - [On Plane Efficiency](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/on-plane-efficiency.md): Percentage of swing (within 10 deg) aligned with swing plane between foot contact and ball co… - [Peak Arm Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/peak-arm-angular-velocity.md): Max angular velocity of the lead upper arm segment during the swing. This represents the peak… - [Peak Pelvis Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/peak-pelvis-angular-velocity.md): Max angular velocity of the pelvis segment during the swing. This represents power generation… - [Peak Trunk Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/peak-trunk-angular-velocity.md): Max angular velocity of the trunk segment during the swing. This represents the peak power ge… - [Pelvis Acceleration Time](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/pelvis-acceleration-time.md): Time from pelvis initiation (start of rotation, also known as launch event) to peak pelvis an… - [Pelvis Deceleration Time](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/pelvis-deceleration-time.md): Time from peak pelvis angular velocity to pelvis termination (end of rotation). This measures… - [Pelvis Global Rotation](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/pelvis-global-rotation.md): Instantaneous measurement of pelvis transverse plane rotation relative to the global coordina… - [Pelvis Global Tilt](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/pelvis-global-tilt.md): Amount of pelvis frontal plane side-to-side tilt relative to the global coordinate system. Th… - [Pelvis to Trunk Speed Up](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/pelvis-to-trunk-speed-up.md): Ratio (multiplication factor) of speed increase from pelvis to trunk. This measures the effic… - [Rear Arm Connection](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/rear-arm-connection.md): Average distance between the rear elbow and mid-torso (halfway between mid-shoulder and mid-h… - [Relative Hand Position - Away from Body](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/relative-hand-position-away-from-body.md): Distance along the axis forward away from the body (+) between mid-shoulders and the average… - [Relative Hand Position - Towards Pitcher](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/relative-hand-position-towards-pitcher.md): Distance along the axis towards the pitcher (+) or away (-) between mid-shoulders and the ave… - [Relative Hand Position - Up](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/relative-hand-position-up.md): Distance along the up axis (+) between mid-shoulders and the average of the two wrists at the… - [Scap Load at Launch](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/scap-load-at-launch.md): Amount of rear shoulder flexion (+) or extension (-) at launch event. Flexion/Extension trans… - [Shoulder Rotation Plane Flexion](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/shoulder-rotation-plane-flexion.md): Amount of trunk flexion required to reach the average plane of rotation of the shoulder joint… - [Shoulder Rotation Plane Tilt](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/shoulder-rotation-plane-tilt.md): Amount of trunk tilt (+ = tilting towards the pitcher) to reach the average plane of rotation… - [Stride Length](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/stride-length.md): Distance between the lead ankle at foot contact and the rear ankle at max foot raise event. T… - [Sway](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/sway.md): Binary indicator of excessive lateral movement of the pelvis just prior to swing. - [Sway Leg](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/sway-leg.md): Binary indicator of excessive lateral movement, determined by rear ankle and knee joint cente… - [Sweet Spot Fore Aft Position At Contact](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/sweet-spot-fore-aft-position-at-contact.md): Fore/aft position (closer to/further from the pitcher) of the bat sweet spot relative to the… - [Swing Path Angle](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/swing-path-angle.md): Plane angle of the bat swing path relative to horizontal in the 0.04 s leading up to ball con… - [Time to Ball Contact](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/time-to-ball-contact.md): Duration between initiation and ball contact events. This measures the total swing time from… - [Time to Launch](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/time-to-launch.md): Duration between initiation and pelvis velocity initiation (launch) events. This measures the… - [Trunk Center of Mass Position X](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-center-of-mass-x.md): Trunk center of mass X position - for use with keypoint positions. This is a time series metr… - [Trunk Center of Mass Position Y](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-center-of-mass-y.md): Trunk center of mass Y position (up/down) - for use with keypoint positions. This is a time s… - [Trunk Center of Mass Position Z](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-center-of-mass-z.md): Trunk center of mass Z position - for use with keypoint positions. This is a time series metr… - [Trunk Coil](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-coil.md): Max rotation angle that the trunk turns away from the pitcher. This measures the loading of t… - [Trunk Global Flexion](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-global-flexion.md): Amount of trunk sagittal plane flexion relative to the global coordinate system. This is a ti… - [Trunk Global Rotation](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-global-rotation.md): Amount of trunk transverse plane rotation relative to the global coordinate system. This is a… - [Trunk Global Tilt](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-global-tilt.md): Amount of trunk frontal plane side-to-side tilt relative to the global coordinate system. Thi… - [Trunk Tilt at Launch](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-tilt-at-launch.md): Amount of side-to-side trunk tilt at launch event (pelvis velocity initiation). Positive valu… - [Trunk to Arm Speed Up](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/trunk-to-arm-speed-up.md): Ratio (multiplication factor) of speed increase from trunk to arm. This measures the efficien… - [Vertical Pelvis Hike](https://docs.uplift.ai/biomechanics/activities/baseball/hitting/metrics/vertical-pelvis-hike.md): Binary indicator of excessive vertical pelvis movement, determined if the pelvis keypoint fin… - [Baseball: Pitching](https://docs.uplift.ai/biomechanics/activities/baseball/pitching.md): Biomechanical analysis of baseball pitching - [Baseball Pitching: Normative Ranges](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/baseball-pitching-norms.md): Full percentile reference tables (5th–95th) for baseball pitching metrics, broken out by comp… - [Foot Contact](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/foot-contact.md): When the lead foot contacts the ground and begins accepting weight. - [Initiation](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/initiation.md): Initial movement beginning the baseball pitch. - [Low Hand](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/low-hand.md): The low point of the throwing hand between max knee raise and release. - [Max Knee Raise](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/max-knee-raise.md): The maximum height of the knee during the pitch. - [Peak Arm Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/peak-arm-ang-vel.md): The instant of upper arm peak angular velocity. - [Peak Pelvis Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/peak-pelvis-ang-vel.md): The instant of pelvis peak angular velocity. - [Peak Trunk Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/peak-trunk-ang-vel.md): The instant of trunk peak angular velocity. - [Release](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/release.md): The estimated time of ball release during the pitch. - [Twist](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/twist.md): The average timing of segment angular velocities. - [Wrist Below Hips](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/events/wrist-below-hips.md): The fist low point of the wrist below the hips after ball release. - [Arm Drag](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/arm-drag.md): Binary indicator of delayed arm motion, occurs if the elbow is above the wrist at foot contac… - [Arm Slot Angle](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/arm-slot-angle.md): Abduction angle of the arm at ball release compared to vertical. - [Arm Slot Type](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/arm-slot-type.md): Broad classification of arm slot angle. - [Closing Front/Back](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/closing-front-or-back.md): Binary indicator of excessive trunk tilt during the pitch. - [Early Release](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/early-release.md): Binary indicator of early ball release - indicated by wrist fore/aft position to lead toe. If… - [Elbow Hike](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/elbow-hike.md): Binary indicator if elbow is above shoulder at foot contact. - [Flying Open](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/flying-open.md): Binary indicator of early trunk rotation. - [Forearm Flyout](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/forearm-flyout.md): Binary indicator of excessive elbow extension prior to ball release. - [Getting Out In Front](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/getting-out-in-front.md): Binary indicator of early trunk forward flexion at foot contact. - [Handedness](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/handedness.md): Handedness of the athlete ('right' or 'left') as input parameter. - [Hanging Back](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/hanging-back.md): Binary indicator if the pitcher initially moves backwards (away from the plate) directly afte… - [High Hand](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/high-hand.md): Binary indicator of whether sufficient forearm layback occurs. - [Hip Raise Angle](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/hip-raise-angle.md): Maximum flexion angle of the lead hip prior to the pitch. - [Kinematic Sequence](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/kinematic-sequence-order.md): Sequence of peak angular velocities during the pitch. - [Knee Collapse](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/knee-collapse.md): Binary indicator of front knee bends excessively during the acceleration phase. - [Late Rise](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/late-rise.md): Binary indicator of delayed wrist elevation (flip up), occurring if wrist is below elbow at f… - [Max Layback Angle](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/max-layback-angle.md): Maximum forearm layback angle (relative to horizontal forward) during the pitch. - [Max Trunk COM Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/max-trunk-com-velocity.md): Maximum linear velocity of the trunk center of mass during the pitch. - [Max X Factor](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/max-x-factor.md): Maximum amount of hip-shoulder separation before acceleration phase. - [Peak Arm Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/peak-arm-angular-velocity.md): Maximum angular velocity (twist speed) of the upper arm segment during the pitch. - [Peak Pelvis Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/peak-pelvis-angular-velocity.md): Maximum angular velocity (twist speed) of the pelvis segment during the pitch. - [Peak Trunk Angular Velocity](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/peak-trunk-angular-velocity.md): Maximum angular velocity (twist speed) of the trunk segment during the pitch. - [Pelvis Angle to Plate Coil](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/pelvis-angle-to-plate-coil.md): Max pelvis rotation angle away from home plate. - [Pelvis Angle to Plate Foot Contact](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/pelvis-angle-to-plate-foot-contact.md): Pelvis rotation angle relative to home plate at foot contact. - [Pelvis Angle to Plate Release](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/pelvis-angle-to-plate-release.md): Pelvis rotation angle relative to home plate at ball release. - [Pelvis to Trunk Speed Up](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/pelvis-to-trunk-speed-up.md): Ratio (multiplication factor) of speed increase from pelvis to trunk. - [Stride Length](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/stride-length.md): Length of stride as percentage of athlete height. - [Sway](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/sway.md): Binary indicator of excessive forwards/backwards motion of the body around the max knee raise… - [Time to Release](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/time-to-release.md): Time from initiation to ball release. This measures the total duration of the pitching motion. - [Trunk Angle to Plate Coil](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/trunk-angle-to-plate-coil.md): Maximum trunk rotation angle away from home plate. - [Trunk Angle to Plate Foot Contact](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/trunk-angle-to-plate-foot-contact.md): Trunk rotation angle relative to home plate at foot contact. - [Trunk Angle to Plate Release](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/trunk-angle-to-plate-release.md): Trunk rotation angle relative to home plate at ball release. - [Trunk Forward Tilt (Release)](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/trunk-forward-tilt-at-ball-release.md): Forward trunk tilt at ball release. - [Trunk Lateral Tilt at Release](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/trunk-lateral-tilt-at-ball-release.md): Lateral (left/right) trunk tilt at ball release. - [Trunk Lateral Tilt (Foot Contact)](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/trunk-lateral-tilt-at-foot-contact.md): Lateral (left-right) trunk tilt at foot contact. - [Trunk to Arm Speed Up](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/trunk-to-arm-speed-up.md): Ratio (multiplication factor) of speed increase from trunk to arm. - [Wrist Position to Lead Toe](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/wrist-fore-aft-lead-toe-at-release.md): Wrist fore/aft position relative to the lead toe at release. - [Wrist Height at Release](https://docs.uplift.ai/biomechanics/activities/baseball/pitching/metrics/wrist-height-at-release.md): Wrist height above the mound at release. - [Basketball: Free Throw](https://docs.uplift.ai/biomechanics/activities/basketball/free_throw.md): Biomechanical analysis of basketball free throw movements, including events, phases, and disc… - [Basketball: Jump Shot](https://docs.uplift.ai/biomechanics/activities/basketball/jump_shot.md): Biomechanical analysis of basketball jump shot movements, including events, phases, and discr… - [Basketball: Layup](https://docs.uplift.ai/biomechanics/activities/basketball/layup.md): Biomechanical analysis of basketball layup movements, including events, phases, and discrete… - [Running](https://docs.uplift.ai/biomechanics/activities/gait/running.md): Biomechanical analysis of running gait, including stride patterns, ground contact phases, and… - [Gait: Walking](https://docs.uplift.ai/biomechanics/activities/gait/walking.md): Biomechanical analysis of walking gait, including stride patterns, ground contact phases, and… - [Golf: Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing.md): Data-driven golf swing analysis that reveals the posture, timing, and sequencing faults holdi… - [Low Hands](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/low-hands.md): The lowest hand position during the downswing, marking the driving point between the top of t… - [Max X-Factor](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/max-x-factor.md): The frame of maximum hip-shoulder separation (X-Factor) angle reached during the swing. - [Min X-Factor](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/min-x-factor.md): The frame of minimum hip-shoulder separation (X-Factor) angle, used to bound the search windo… - [P1 Address](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p1-address.md): Static setup position immediately before the swing begins, identified as roughly 0.3 seconds… - [P10 Finish](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p10-finish.md): The final, balanced finish position of the swing, identified as the frame of maximum hand hei… - [P2 Takeaway](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p2-takeaway.md): Start of the golf swing, identified as the first frame where hip-shoulder separation (X-Facto… - [P3 Mid Backswing](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p3-mid-backswing.md): Midpoint of the backswing, identified as the first frame between Address and Top of Swing whe… - [P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p4-top-of-swing.md): The highest hand position of the backswing and the moment just before the downswing transitio… - [P5 Transition](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p5-transition.md): The change of direction from backswing to downswing, identified from the trailing edge of the… - [P6 Pre-Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p6-pre-impact.md): The moment just before impact, identified as the frame where the lead wrist is closest to the… - [P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p7-impact.md): The moment of ball contact, the 'moment of truth' that determines where the ball goes. Also e… - [P8 Release](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p8-release.md): The moment just after impact, identified as the temporal midpoint between Impact and Follow T… - [P9 Follow Through](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/p9-follow-through.md): Continued rotation after the strike, identified as the first frame after Low Hands where the… - [Peak Arm Angular Velocity](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/peak-arm-angular-velocity.md): The instant the lead arm reaches its maximum rotational velocity during the downswing. - [Peak Pelvis Angular Velocity](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/peak-pelvis-angular-velocity.md): The instant the pelvis reaches its maximum rotational (twist) velocity during the downswing. - [Peak Trunk Angular Velocity](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/peak-trunk-angular-velocity.md): The instant the trunk reaches its maximum rotational (twist) velocity during the downswing. - [X-Factor Zero Crossing](https://docs.uplift.ai/biomechanics/activities/golf/swing/events/x-factor-zero-crossing.md): The instant the hip-shoulder separation (X-Factor) angle crosses zero following its steepest… - [Chicken Wing](https://docs.uplift.ai/biomechanics/activities/golf/swing/flags/chicken-wing.md): Binary indicator of a 'chicken wing' fault — the lead elbow bends more than 20 degrees at imp… - [Early Extension](https://docs.uplift.ai/biomechanics/activities/golf/swing/flags/early-extension.md): Binary indicator of early extension — the pelvis moves toward the ball (target line) by more… - [Hang Back](https://docs.uplift.ai/biomechanics/activities/golf/swing/flags/hang-back.md): Binary indicator of a 'hang back' fault — the golfer's weight stays on the trail side, with t… - [Loss of Posture](https://docs.uplift.ai/biomechanics/activities/golf/swing/flags/loss-of-posture.md): Binary indicator if the golfer loses spine posture during the swing, flagged when the mid-sho… - [Reverse Spine Angle](https://docs.uplift.ai/biomechanics/activities/golf/swing/flags/reverse-spine-angle.md): Binary indicator of a reverse spine angle — the trunk tilts toward the target during the back… - [Slide](https://docs.uplift.ai/biomechanics/activities/golf/swing/flags/slide.md): Binary indicator of a 'slide' fault — the lead knee or hip shifts laterally toward the target… - [Sway](https://docs.uplift.ai/biomechanics/activities/golf/swing/flags/sway.md): Binary indicator of a sway fault — the pelvis shifts laterally away from the target by more t… - [Downswing Duration](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/downswing-duration.md): Duration from Top of Swing (P4) to Impact (P7). - [Dynamic Tempo Ratio](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/dynamic-tempo-ratio.md): Ratio of Downswing Duration to Upswing Duration. - [Follow-Through Max X-Factor](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/follow-through-max-x-factor.md): Maximum hip-shoulder separation (X-Factor) reached between Impact and Finish — the release of… - [Global Pelvis Rotation at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-pelvis-rotation-at-p4-top-of-swing.md): Pelvis rotation angle relative to its own position at Address, measured in the global referen… - [Global Pelvis Rotation at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-pelvis-rotation-at-p7-impact.md): Pelvis rotation angle relative to its own position at Address, measured in the global referen… - [Global Pelvis Tilt at P1 Address](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-pelvis-tilt-at-p1-address.md): Pelvis side-to-side tilt angle relative to the global reference frame, at P1 Address. - [Global Pelvis Tilt at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-pelvis-tilt-at-p4-top-of-swing.md): Pelvis side-to-side tilt angle relative to the global reference frame, at P4 Top of Swing. - [Global Pelvis Tilt at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-pelvis-tilt-at-p7-impact.md): Pelvis side-to-side tilt angle relative to the global reference frame, at P7 Impact. - [Global Trunk Flexion at P1 Address](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-trunk-flexion-at-p1-address.md): Trunk forward/backward flexion angle relative to the global (vertical) reference frame, at P1… - [Global Trunk Flexion at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-trunk-flexion-at-p4-top-of-swing.md): Trunk forward/backward flexion angle relative to the global (vertical) reference frame, at P4… - [Global Trunk Flexion at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-trunk-flexion-at-p7-impact.md): Trunk forward/backward flexion angle relative to the global (vertical) reference frame, at P7… - [Global Trunk Rotation at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-trunk-rotation-at-p4-top-of-swing.md): Trunk rotation angle relative to its own position at Address, measured in the global referenc… - [Global Trunk Rotation at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-trunk-rotation-at-p7-impact.md): Trunk rotation angle relative to its own position at Address, measured in the global referenc… - [Global Trunk Tilt at P1 Address](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-trunk-tilt-at-p1-address.md): Trunk side-to-side tilt angle relative to the global reference frame, at P1 Address. - [Global Trunk Tilt at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-trunk-tilt-at-p4-top-of-swing.md): Trunk side-to-side tilt angle relative to the global reference frame, at P4 Top of Swing. - [Global Trunk Tilt at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/global-trunk-tilt-at-p7-impact.md): Trunk side-to-side tilt angle relative to the global reference frame, at P7 Impact. - [Kinematic Sequence](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/kinematic-sequence.md): Order of peak angular velocity timing among the pelvis, trunk, and arm during the downswing.… - [Lead Shoulder Flexion at P1 Address](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/lead-shoulder-flexion-at-p1-address.md): Lead shoulder forward/backward raise angle relative to the trunk at P1 Address. - [Lead Shoulder Flexion at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/lead-shoulder-flexion-at-p4-top-of-swing.md): Lead shoulder forward/backward raise angle relative to the trunk at P4 Top of Swing. - [Lead Shoulder Flexion at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/lead-shoulder-flexion-at-p7-impact.md): Lead shoulder forward/backward raise angle relative to the trunk at P7 Impact. - [Lead Shoulder Tilt at P1 Address](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/lead-shoulder-tilt-at-p1-address.md): Lead shoulder up/down tilt angle relative to the trunk at P1 Address. - [Lead Shoulder Tilt at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/lead-shoulder-tilt-at-p4-top-of-swing.md): Lead shoulder up/down tilt angle relative to the trunk at P4 Top of Swing. - [Lead Shoulder Tilt at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/lead-shoulder-tilt-at-p7-impact.md): Lead shoulder up/down tilt angle relative to the trunk at P7 Impact. - [Peak Arm Velocity](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/peak-arm-velocity.md): Maximum rotational velocity of the lead arm during the downswing. - [Peak Pelvis Velocity](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/peak-pelvis-velocity.md): Maximum rotational (twist) velocity of the pelvis during the downswing. - [Peak Trunk Velocity](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/peak-trunk-velocity.md): Maximum rotational (twist) velocity of the trunk during the downswing. - [Pelvis Sway Range](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/pelvis-sway-range.md): Range of lateral pelvis displacement between Address and Impact, reported alongside the Sway… - [Pre-Load Max X-Factor](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/pre-load-max-x-factor.md): Maximum hip-shoulder separation (X-Factor) reached between Address and Impact — the backswing… - [Trail Shoulder Flexion at P1 Address](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/trail-shoulder-flexion-at-p1-address.md): Trail shoulder forward/backward raise angle relative to the trunk at P1 Address. - [Trail Shoulder Flexion at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/trail-shoulder-flexion-at-p4-top-of-swing.md): Trail shoulder forward/backward raise angle relative to the trunk at P4 Top of Swing. - [Trail Shoulder Flexion at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/trail-shoulder-flexion-at-p7-impact.md): Trail shoulder forward/backward raise angle relative to the trunk at P7 Impact. - [Trail Shoulder Tilt at P1 Address](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/trail-shoulder-tilt-at-p1-address.md): Trail shoulder up/down tilt angle relative to the trunk at P1 Address. - [Trail Shoulder Tilt at P4 Top of Swing](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/trail-shoulder-tilt-at-p4-top-of-swing.md): Trail shoulder up/down tilt angle relative to the trunk at P4 Top of Swing. - [Trail Shoulder Tilt at P7 Impact](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/trail-shoulder-tilt-at-p7-impact.md): Trail shoulder up/down tilt angle relative to the trunk at P7 Impact. - [Upswing Duration](https://docs.uplift.ai/biomechanics/activities/golf/swing/metrics/upswing-duration.md): Duration from Takeaway (P2) to Top of Swing (P4). - [Broad Jump](https://docs.uplift.ai/biomechanics/activities/jump/broad.md): Biomechanical analysis of broad jump movements, including events, phases, and discrete metric… - [Jump: Countermovement](https://docs.uplift.ai/biomechanics/activities/jump/countermovement.md): Biomechanical analysis of countermovement jump movements, including events, phases, and discr… - [Drop Vertical Jump](https://docs.uplift.ai/biomechanics/activities/jump/drop_vertical.md): Biomechanical analysis of drop vertical jump movements, including events, phases, and discret… - [Bottom](https://docs.uplift.ai/biomechanics/activities/jump/events/bottom.md): The lowest point of the pelvis before the jump. - [Initiation](https://docs.uplift.ai/biomechanics/activities/jump/events/initiation.md): The start of the jump—when the person begins to move downward. - [Landing](https://docs.uplift.ai/biomechanics/activities/jump/events/landing.md): The instant of ground contact after the jump. - [Landing Bottom](https://docs.uplift.ai/biomechanics/activities/jump/events/landing-bottom.md): The lowest point of the pelvis after the jump (deepest landing absorption). - [Peak Height](https://docs.uplift.ai/biomechanics/activities/jump/events/peak-height.md): The instant when maximum height is reached during the jump. - [Takeoff](https://docs.uplift.ai/biomechanics/activities/jump/events/takeoff.md): The instant of leaving the ground. - [Termination](https://docs.uplift.ai/biomechanics/activities/jump/events/termination.md): End of the movement—when the person returns to normal standing position. - [Eccentric Velocity](https://docs.uplift.ai/biomechanics/activities/jump/metrics/eccentric-velocity.md): Average velocity during the jumping eccentric (downward) phase. - [Flight Time](https://docs.uplift.ai/biomechanics/activities/jump/metrics/flight-time.md): Time from takeoff to landing. - [Forward Displacement](https://docs.uplift.ai/biomechanics/activities/jump/metrics/forward-displacement.md): Forward displacement during landing. - [High Jump Height](https://docs.uplift.ai/biomechanics/activities/jump/metrics/high-jump-height.md): Binary indicator if jump height exceeds 14 inches. - [Hip Knee Dominance](https://docs.uplift.ai/biomechanics/activities/jump/metrics/hip-knee-dominance.md): Ratio of hip vs. knee contribution (0 = hip dominant, 1 = knee dominant) during a given phase. - [Hips Feet Stationary](https://docs.uplift.ai/biomechanics/activities/jump/metrics/hips-feet-stationary.md): Binary indicator of whether the legs refrain from rotating in or out during the jump. - [Jump Height](https://docs.uplift.ai/biomechanics/activities/jump/metrics/jump-height.md): Maximum height reached during the jump. - [Kinematic Sequence](https://docs.uplift.ai/biomechanics/activities/jump/metrics/kinematic-sequence.md): Sequence of peak joint angular velocities during the jump. - [Kinematic Sequence Array](https://docs.uplift.ai/biomechanics/activities/jump/metrics/kinematic-sequence-array.md): Array representation of the sequence of peak segment angular velocities during the jump. - [Knee Valgus](https://docs.uplift.ai/biomechanics/activities/jump/metrics/knee-valgus.md): Medial (inward) knee displacement at a specific event or over a phase during the jump. - [Knees Track](https://docs.uplift.ai/biomechanics/activities/jump/metrics/knees-track.md): Binary indicator of whether the knees track properly over the toes during the jump - [Landing Stiffness Index](https://docs.uplift.ai/biomechanics/activities/jump/metrics/landing-stiffness-index.md): Index of landing stiffness during the landing phase. - [Landing Stiffness Index Level](https://docs.uplift.ai/biomechanics/activities/jump/metrics/landing-stiffness-index-level.md): Classification or level of landing stiffness (e.g., stiff, moderate, compliant). - [Peak Ankle Angle](https://docs.uplift.ai/biomechanics/activities/jump/metrics/peak-ankle-angle.md): Maximum ankle flexion (dorsiflexion) angle at a given phase or event. - [Peak Ankle Velocity](https://docs.uplift.ai/biomechanics/activities/jump/metrics/peak-ankle-velocity.md): Maximum ankle angular velocity (flexion or extension). - [Peak COM Velocity](https://docs.uplift.ai/biomechanics/activities/jump/metrics/peak-com-velocity.md): Maximum center of mass velocity during a specified phase of the jump or landing. - [Peak Hip Flexion](https://docs.uplift.ai/biomechanics/activities/jump/metrics/peak-hip-angle.md): Maximum hip flexion angle at a given phase or event. - [Peak Hip Extension Velocity](https://docs.uplift.ai/biomechanics/activities/jump/metrics/peak-hip-velocity.md): Maximum hip extension angular velocity during a concentric phase. - [Peak Knee Flexion](https://docs.uplift.ai/biomechanics/activities/jump/metrics/peak-knee-angle.md): Maximum knee flexion angle over a given phase. - [Peak Knee Extension Velocity](https://docs.uplift.ai/biomechanics/activities/jump/metrics/peak-knee-velocity.md): Maximum knee angular velocity, either flexion or extension depending on the phase. - [Peak Shoulder Flexion Velocity Takeoff Concentric](https://docs.uplift.ai/biomechanics/activities/jump/metrics/peak-shoulder-flexion-velocity-takeoff-concentric.md): Maximum shoulder flexion velocity during the concentric (push) phase of the jump. - [Reactive Strength Index Modified (RSI Mod)](https://docs.uplift.ai/biomechanics/activities/jump/metrics/reactive-strength-index-modified.md): Measures ratio of jump height to ground contact time or drop height. - [Right Displacement](https://docs.uplift.ai/biomechanics/activities/jump/metrics/right-displacement.md): Lateral (side-to-side) displacement during landing. - [Shank Angle WRT Global](https://docs.uplift.ai/biomechanics/activities/jump/metrics/shank-angle-global.md): Angle of the shank (lower leg) segment relative to the global coordinate system, in a given p… - [Stiff Knee Landing](https://docs.uplift.ai/biomechanics/activities/jump/metrics/stiff-knee-landing.md): Binary indicator of stiff knee landing (reduced knee flexion during landing absorption). - [Takeoff Velocity](https://docs.uplift.ai/biomechanics/activities/jump/metrics/takeoff-velocity.md): Vertical velocity at takeoff. - [Thigh Angle WRT Global](https://docs.uplift.ai/biomechanics/activities/jump/metrics/thigh-angle-global.md): Angle of the thigh segment relative to the global coordinate system, in a given plane. - [Single Leg Jump](https://docs.uplift.ai/biomechanics/activities/jump/single_leg.md): Biomechanical analysis of single leg jump movements, including events, phases, and discrete m… - [Single Leg Broad Jump](https://docs.uplift.ai/biomechanics/activities/jump/single_leg_broad.md): Biomechanical analysis of single leg broad jump movements, including events, phases, and disc… - [Squat Jump](https://docs.uplift.ai/biomechanics/activities/jump/squat.md): Biomechanical analysis of squat jump movements, including events, phases, and discrete metric… - [Bottom](https://docs.uplift.ai/biomechanics/activities/lunge/events/bottom.md): The instant of maximum lunge depth, when the pelvis reaches its lowest point. - [End](https://docs.uplift.ai/biomechanics/activities/lunge/events/end.md): The end of the forward lunge, when the athlete returns to the starting position. - [Initiation](https://docs.uplift.ai/biomechanics/activities/lunge/events/initiation.md): The start of the forward lunge, when the athlete begins stepping forward. - [Forward Lunge](https://docs.uplift.ai/biomechanics/activities/lunge/forward.md): Biomechanical analysis of forward lunge movements, including events, phases, and discrete met… - [Max Ankle Flexion Angle](https://docs.uplift.ai/biomechanics/activities/lunge/metrics/ankle-flexion.md): Maximum dorsiflexion angle of the right or left ankle during the forward lunge. - [Max Hip Flexion Angle](https://docs.uplift.ai/biomechanics/activities/lunge/metrics/hip-flexion.md): Maximum hip flexion angle of the right or left hip during the forward lunge. - [Hip Knee Dominance](https://docs.uplift.ai/biomechanics/activities/lunge/metrics/hip-knee-dominance.md): Ratio of hip vs. knee contribution (0 = hip dominant, 1 = knee dominant) during eccentric or… - [Max Knee Flexion Angle](https://docs.uplift.ai/biomechanics/activities/lunge/metrics/knee-flexion.md): Maximum knee flexion angle of the right or left knee during the forward lunge. - [Knee Valgus](https://docs.uplift.ai/biomechanics/activities/lunge/metrics/knee-valgus.md): Medial knee displacement (valgus) of the lead leg at the bottom of the forward lunge. - [Lunge Depth](https://docs.uplift.ai/biomechanics/activities/lunge/metrics/lunge-depth.md): Vertical displacement of the pelvis during the forward lunge, reflecting range of motion dept… - [Stance Length and Width](https://docs.uplift.ai/biomechanics/activities/lunge/metrics/stance-dimensions.md): Anterior–posterior (length) and medial–lateral (width) distance between the feet at the botto… - [Max Trunk Lean](https://docs.uplift.ai/biomechanics/activities/lunge/metrics/trunk-lean.md): Maximum lateral trunk lean to the right or left during the forward lunge. - [Side Lunge](https://docs.uplift.ai/biomechanics/activities/lunge/side.md): Biomechanical analysis of side lunge movements, including events, phases, and discrete metric… - [range_of_motion-ankle_flexion](https://docs.uplift.ai/biomechanics/activities/range_of_motion/ankle_flexion.md): Biomechanical analysis of ankle dorsiflexion range of motion assessment, including measuremen… - [Cervical Flexion/Extension](https://docs.uplift.ai/biomechanics/activities/range_of_motion/cervical_flexion_extension.md): Biomechanical analysis of cervical spine flexion and extension range of motion assessment. - [Cervical Rotation](https://docs.uplift.ai/biomechanics/activities/range_of_motion/cervical_rotation.md): Biomechanical analysis of cervical spine rotation range of motion assessment. - [SFMA Shoulder Extension](https://docs.uplift.ai/biomechanics/activities/range_of_motion/sfma_shoulder_extension.md): Biomechanical analysis of SFMA shoulder extension range of motion assessment, including compe… - [SFMA Shoulder Flexion](https://docs.uplift.ai/biomechanics/activities/range_of_motion/sfma_shoulder_flexion.md): Biomechanical analysis of SFMA shoulder flexion range of motion assessment, including compens… - [Shoulder 90/90](https://docs.uplift.ai/biomechanics/activities/range_of_motion/shoulder_9090.md): Biomechanical analysis of shoulder 90/90 range of motion assessment for external and internal… - [Shoulder Flexion](https://docs.uplift.ai/biomechanics/activities/range_of_motion/shoulder_flexion.md): Biomechanical analysis of shoulder flexion and extension range of motion assessment. - [T-Spine Rotation](https://docs.uplift.ai/biomechanics/activities/range_of_motion/t_spine.md): Biomechanical analysis of thoracic spine rotation range of motion assessment with compensatio… - [Softball: Hitting](https://docs.uplift.ai/biomechanics/activities/softball/hitting.md): Biomechanical analysis of softball hitting movements, including events and metrics for body a… - [Ball Contact](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/ball-contact.md): The estimated timing of ball contact - determined by audio signal (primary) or swing through… - [Elbow Slot](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/elbow-slot.md): When the rear elbow drops downward in preparation for the arm swing. - [End Twist](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/end-twist.md): Finds the end of the twisting motion: after X Factor zero crossing, when X Factor velocity re… - [Foot Contact](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/foot-contact.md): The instant the front foot fully contacts the ground and begins accepting weight. - [Initiation](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/initiation.md): The initiation event marks when the lead foot begins to move prior to max knee raise. This ma… - [Max Foot Raise](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/max-foot-raise.md): The maximum height of the lead foot during the swing. This event marks the peak elevation of… - [Max X Factor](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/max-x-factor.md): The instant of maximum separation between shoulders and hips before the twisting motion of th… - [Peak Arm Angular Velocity](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/peak-arm-ang-vel.md): The instant of lead arm peak angular velocity. - [Peak Pelvis Angular Velocity](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/peak-pelvis-ang-vel.md): The instant of pelvis peak angular velocity. - [Peak Trunk Angular Velocity](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/peak-trunk-ang-vel.md): The instant of trunk peak angular velocity. - [Peak Wrist Angular Velocity](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/peak-wrist-angular-velocity.md): The instant of maximum wrist angular velocity during the swing. This represents the peak of t… - [Pelvis Velocity Initiation (Launch)](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/pelvis-velocity-initiation.md): The start of pelvis rotation - also known as launch event. Determined as the leading edge of… - [Pelvis Velocity Termination](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/pelvis-velocity-termination.md): The trailing edge of the pelvis angular velocity waveform. This marks the end of the pelvis r… - [Swing Through](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/swing-through.md): The instant the rear wrist passes in front of the lead wrist, corresponding to a batter commi… - [Twist](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/twist.md): The average timing of peak angular velocities for the pelvis, trunk, and arm. Used to identif… - [Wrist Initiation](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/wrist-initiation.md): The start of the wrist movement during the swing. Finds the last local minimum before peak wr… - [X Factor Zero Crossing](https://docs.uplift.ai/biomechanics/activities/softball/hitting/events/x-factor-zero-crossing.md): When the shoulder-hip separation crosses zero after Max X Factor. This marks the transition f… - [Attack Angle](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/attack-angle.md): Angle relative to forward horizontal that the bat sweet spot moves through in the frames lead… - [Attack Direction](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/attack-direction.md): Horizontal plane angle of the bat relative to the front of home plate, generally determines d… - [Ball Contact Method](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/ball-contact-method.md): Ball contact event detection method: [both audio, single audio, swing through]. This indicate… - [Bat Speed - Angular to Linear](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/bat-speed-angular-to-linear.md): Converted angular velocity to linear velocity. This measures the bat speed calculated from an… - [Bat Speed - Resultant Sweet Spot](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/bat-speed-resultant-sweet-spot.md): Linear velocity of bat sweet spot during the swing. This measures the actual bat speed at the… - [Body Center of Mass Position X](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/body-center-of-mass-x.md): Whole body center of mass X position - for use with keypoint positions. This is a time series… - [Body Center of Mass Position Y](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/body-center-of-mass-y.md): Whole body center of mass Y position (up/down) - for use with keypoint positions. This is a t… - [Body Center of Mass Position Z](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/body-center-of-mass-z.md): Whole body center of mass Z position - for use with keypoint positions. This is a time series… - [Connection at Impact](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/connection-at-impact.md): Horizontal plane angle of the bat relative to the batter's torso at the instant of ball conta… - [Drifting Forward](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/drifting-forward.md): Binary indicator of excessive forward movement, determine by whether the pelvis drifts forwar… - [Drifting Forward Magnitude](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/drifting-forward-magnitude.md): Distance drifted forward during the swing - see Drifting Forward movement flag. This quantifi… - [Elbow Flexion at Ball Contact](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/elbow-flexion-at-ball-contact.md): Amount of rear elbow flexion at ball contact event. This measures the elbow angle at the inst… - [Elbow Flexion at Launch](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/elbow-flexion-at-launch.md): Amount of rear elbow flexion at launch event. This measures the elbow angle at the start of t… - [Handedness](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/handedness.md): Handedness of the athlete ['right' or 'left'] as input parameter. This determines the swing s… - [Hip Hinge](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/hip-hinge.md): Max amount of rear hip flexion between max foot raise and foot contact events. - [Inter Elbow Distance at Ball Contact](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/inter-elbow-distance-at-ball-contact.md): Distance between the lead and rear elbows at ball contact event. This measures the separation… - [Inter Elbow Distance at Elbow Slot](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/inter-elbow-distance-at-elbow-slot.md): Distance between the lead and rear elbows at the elbow slot event. This measures the separati… - [Inter Elbow Distance at Trunk Peak](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/inter-elbow-distance-at-trunk-peak.md): Distance between the lead and rear elbows at the trunk peak angular velocity event. - [Kinematic Sequence Order](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/kinematic-sequence-order.md): Sequence of segment peak angular velocities (twist speed) during the swing. Correct sequencin… - [Knee Dominant](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/knee-dominant.md): Binary indicator if swing is knee-dominant, determined by comparing rear knee flexion with hi… - [Lateral Pelvis Tilt](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/lateral-pelvis-tilt.md): Binary indicator of excessive lateral pelvis tilt, determined by whether the pelvis tilts upw… - [Launch Position](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/launch-position.md): Launch position indicates how the bat is positioned relative to the spine when the swing begi… - [Lead Knee Angle at Ball Contact](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/lead-knee-angle-at-ball-contact.md): Amount of lead knee flexion at ball contact. This measures the knee angle of the front leg at… - [Leads With Wrist](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/leads-with-wrist.md): Binary indicator if wrist leads the swing: if wrist initiation event occurs before pelvis ini… - [Linear Stretch](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/linear-stretch.md): Distance between the lead ankle and center of both wrists along the pitch direction at foot c… - [Max X Factor](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/max-x-factor.md): Max amount of twist hip shoulder separation during the swing. - [On Plane Efficiency](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/on-plane-efficiency.md): Percentage of swing (within 10 deg) aligned with swing plane between foot contact and ball co… - [Peak Arm Angular Velocity](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/peak-arm-angular-velocity.md): Max angular velocity of the lead upper arm segment during the swing. This represents the peak… - [Peak Pelvis Angular Velocity](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/peak-pelvis-angular-velocity.md): Max angular velocity of the pelvis segment during the swing. This represents power generation… - [Peak Trunk Angular Velocity](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/peak-trunk-angular-velocity.md): Max angular velocity of the trunk segment during the swing. This represents the peak power ge… - [Pelvis Acceleration Time](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/pelvis-acceleration-time.md): Time from pelvis initiation (start of rotation, also known as launch event) to peak pelvis an… - [Pelvis Deceleration Time](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/pelvis-deceleration-time.md): Time from peak pelvis angular velocity to pelvis termination (end of rotation). This measures… - [Pelvis Global Rotation](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/pelvis-global-rotation.md): Instantaneous measurement of pelvis transverse plane rotation relative to the global coordina… - [Pelvis Global Tilt](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/pelvis-global-tilt.md): Amount of pelvis frontal plane side-to-side tilt relative to the global coordinate system. Th… - [Pelvis to Trunk Speed Up](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/pelvis-to-trunk-speed-up.md): Ratio (multiplication factor) of speed increase from pelvis to trunk. This measures the effic… - [Rear Arm Connection](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/rear-arm-connection.md): Average distance between the rear elbow and mid-torso (halfway between mid-shoulder and mid-h… - [Relative Hand Position - Away from Body](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/relative-hand-position-away-from-body.md): Distance along the axis forward away from the body (+) between mid-shoulders and the average… - [Relative Hand Position - Towards Pitcher](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/relative-hand-position-towards-pitcher.md): Distance along the axis towards the pitcher (+) or away (-) between mid-shoulders and the ave… - [Relative Hand Position - Up](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/relative-hand-position-up.md): Distance along the up axis (+) between mid-shoulders and the average of the two wrists at the… - [Scap Load at Launch](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/scap-load-at-launch.md): Amount of rear shoulder flexion (+) or extension (-) at launch event. Flexion/Extension trans… - [Shoulder Rotation Plane Flexion](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/shoulder-rotation-plane-flexion.md): Amount of trunk flexion required to reach the average plane of rotation of the shoulder joint… - [Shoulder Rotation Plane Tilt](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/shoulder-rotation-plane-tilt.md): Amount of trunk tilt (+ = tilting towards the pitcher) to reach the average plane of rotation… - [Stride Length](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/stride-length.md): Distance between the lead ankle at foot contact and the rear ankle at max foot raise event. T… - [Sway](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/sway.md): Binary indicator of excessive lateral movement of the pelvis just prior to swing. - [Sway Leg](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/sway-leg.md): Binary indicator of excessive lateral movement, determined by rear ankle and knee joint cente… - [Sweet Spot Fore Aft Position At Contact](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/sweet-spot-fore-aft-position-at-contact.md): Fore/aft position (closer to/further from the pitcher) of the bat sweet spot relative to the… - [Swing Path Angle](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/swing-path-angle.md): Plane angle of the bat swing path relative to horizontal in the 0.04 s leading up to ball con… - [Time to Ball Contact](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/time-to-ball-contact.md): Duration between initiation and ball contact events. This measures the total swing time from… - [Time to Launch](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/time-to-launch.md): Duration between initiation and pelvis velocity initiation (launch) events. This measures the… - [Trunk Center of Mass Position X](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-center-of-mass-x.md): Trunk center of mass X position - for use with keypoint positions. This is a time series metr… - [Trunk Center of Mass Position Y](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-center-of-mass-y.md): Trunk center of mass Y position (up/down) - for use with keypoint positions. This is a time s… - [Trunk Center of Mass Position Z](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-center-of-mass-z.md): Trunk center of mass Z position - for use with keypoint positions. This is a time series metr… - [Trunk Coil](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-coil.md): Max rotation angle that the trunk turns away from the pitcher. This measures the loading of t… - [Trunk Global Flexion](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-global-flexion.md): Amount of trunk sagittal plane flexion relative to the global coordinate system. This is a ti… - [Trunk Global Rotation](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-global-rotation.md): Amount of trunk transverse plane rotation relative to the global coordinate system. This is a… - [Trunk Global Tilt](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-global-tilt.md): Amount of trunk frontal plane side-to-side tilt relative to the global coordinate system. Thi… - [Trunk Tilt at Launch](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-tilt-at-launch.md): Amount of side-to-side trunk tilt at launch event (pelvis velocity initiation). Positive valu… - [Trunk to Arm Speed Up](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/trunk-to-arm-speed-up.md): Ratio (multiplication factor) of speed increase from trunk to arm. This measures the efficien… - [Vertical Pelvis Hike](https://docs.uplift.ai/biomechanics/activities/softball/hitting/metrics/vertical-pelvis-hike.md): Binary indicator of excessive vertical pelvis movement, determined if the pelvis keypoint fin… - [Softball: Pitching](https://docs.uplift.ai/biomechanics/activities/softball/pitching.md): Biomechanical analysis of softball windmill pitching - [Drive Start](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/drive-start.md): Start of the drive phase of the softball pitch. - [Finish](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/finish.md): Follow-through peak in wrist height after ball release. - [Foot Contact](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/foot-contact.md): Front foot contacts the ground during the softball pitch. - [High Hand](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/high-hand.md): Highest point of the throwing hand during the windup. - [Initiation](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/initiation.md): Initial movement beginning the softball pitch. - [Low Hand](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/low-hand.md): Lowest point of the throwing hand after high hand. - [Max Knee Raise](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/max-knee-raise.md): Maximum lead knee height during the softball pitch. - [Power K Position](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/power-k-position.md): Throwing wrist drops below the shoulder after high hand. - [Release](https://docs.uplift.ai/biomechanics/activities/softball/pitching/events/release.md): Estimated timing of ball release during the softball pitch. - [Average Arm Circle Radius](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/average-arm-circle-radius.md): Average shoulder-to-wrist distance during the arm circle, normalized by arm length. - [Average Elbow Angle During Rotation](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/average-elbow-angle-during-rotation.md): Average elbow flexion angle during the arm circle rotation phase. - [Foot Plant Angle](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/foot-plant-angle.md): Lead foot angle relative to the pitch direction at foot contact. - [Handedness](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/handedness.md): Handedness of the athlete ('right' or 'left') as input parameter. - [Knee Collapse](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/knee-collapse.md): Binary indicator if the front knee flexes more than 20° between foot contact and release. - [Lack of Knee Drive](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/lack-of-knee-drive.md): Binary indicator if the loading knee fails to drive past the toe before the drive phase. - [Max Trunk Flexion](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/max-trunk-flexion.md): Max forward trunk flexion angle near pitch initiation. - [Max X Factor](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/max-x-factor.md): Max hip-shoulder separation between drive start and release. - [Pre-Tracking](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/pre-tracking.md): Binary indicator if shoulders or hips rotate away from the target before the drive phase. - [Shin Angle at Loading](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/shin-angle-at-loading.md): Max forward shin angle during the loading phase of the pitch. - [Stride Length](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/stride-length.md): Length of stride as percentage of athlete height. - [Time to Release](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/time-to-release.md): Time from initiation to ball release. This measures the total duration of the pitching motion. - [Trunk Global Flexion, Tilt & Twist](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/trunk-global-orientation.md): Trunk flexion, lateral tilt, and rotation relative to global orientation at foot contact and… - [Trunk Not Stacked](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/trunk-not-stacked.md): Binary indicator if trunk flexion, tilt, or twist exceeds threshold between high hand and rel… - [Wrist Height at Release](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/wrist-height-at-release.md): Wrist height above ground level at release, normalized by athlete height. - [Wrist Position vs. Pelvis at Release](https://docs.uplift.ai/biomechanics/activities/softball/pitching/metrics/wrist-position-vs-pelvis.md): Wrist position relative to the pelvis at release, in the forward, up, and side directions. - [Bodyweight Squat](https://docs.uplift.ai/biomechanics/activities/squat/body_weight.md): Biomechanical analysis of bodyweight squat movements, including events, phases, and discrete… - [Ascent Start](https://docs.uplift.ai/biomechanics/activities/squat/events/ascent-start.md): The start of upward movement from the bottom of the squat. - [Bottom](https://docs.uplift.ai/biomechanics/activities/squat/events/bottom.md): The instant of maximum squat depth. - [Bottom1](https://docs.uplift.ai/biomechanics/activities/squat/events/bottom1.md): The first instance of maximum squat depth. - [End](https://docs.uplift.ai/biomechanics/activities/squat/events/end.md): The end of the squat movement, when the person returns to standing. - [Initiation](https://docs.uplift.ai/biomechanics/activities/squat/events/initiation.md): The start of the squat, when the person begins to move downward. - [Bottom Time](https://docs.uplift.ai/biomechanics/activities/squat/metrics/bottom-time.md): Time spent at the bottom position of the squat. - [Concentric Velocity](https://docs.uplift.ai/biomechanics/activities/squat/metrics/concentric-velocity.md): Average vertical velocity during the squat concentric (upward) phase. - [Continuous](https://docs.uplift.ai/biomechanics/activities/squat/metrics/continuous.md): Binary indicator of whether the squat is continuous (1) or has a pause at the bottom (0). - [Depth](https://docs.uplift.ai/biomechanics/activities/squat/metrics/depth.md): Vertical displacement of the pelvis from start to bottom of the squat. - [Eccentric Velocity](https://docs.uplift.ai/biomechanics/activities/squat/metrics/eccentric-velocity.md): Average vertical velocity during the squat eccentric (downward) phase. - [Hip Below Knee / Hips Pass Knees and Distance](https://docs.uplift.ai/biomechanics/activities/squat/metrics/hip-below-knee.md): Whether the hips go below the level of the knees at squat bottom, and the distance. - [Hip Knee Dominance](https://docs.uplift.ai/biomechanics/activities/squat/metrics/hip-knee-dominance.md): Ratio of hip vs. knee contribution (0 = hip dominant, 1 = knee dominant) during eccentric or… - [Hips Feet Stationary](https://docs.uplift.ai/biomechanics/activities/squat/metrics/hips-feet-stationary.md): Binary indicator of whether the hips and feet refrain from rotating inwards or outwards durin… - [Knee Valgus](https://docs.uplift.ai/biomechanics/activities/squat/metrics/knee-valgus.md): Medial knee displacement (valgus motion) at bottom or over eccentric/concentric phases during… - [Knees Track](https://docs.uplift.ai/biomechanics/activities/squat/metrics/knees-track.md): Binary indicator of whether the knees track properly over the toes during the squat (1 = yes,… - [Max Trunk Angle](https://docs.uplift.ai/biomechanics/activities/squat/metrics/max-trunk-angle.md): Maximum sagittal plane trunk angle relative to vertical during the squat. - [Peak Ankle Flexion](https://docs.uplift.ai/biomechanics/activities/squat/metrics/peak-ankle-flexion.md): Maximum ankle flexion (dorsiflexion) angle during the squat. - [Peak Hip Flexion](https://docs.uplift.ai/biomechanics/activities/squat/metrics/peak-hip-flexion.md): Maximum hip flexion angle during the squat. - [Peak Knee Flexion](https://docs.uplift.ai/biomechanics/activities/squat/metrics/peak-knee-flexion.md): Maximum knee flexion angle during the squat. - [Functional (SFMA)](https://docs.uplift.ai/biomechanics/activities/squat/metrics/sfma-functional.md): Binary indicator of whether the SFMA squat is classified as functional (1) or not (0) based o… - [Sufficient Knee Flexion](https://docs.uplift.ai/biomechanics/activities/squat/metrics/sufficient-knee-flexion.md): Binary indicator of whether knee flexion is sufficient (1) or not (0) during the single-leg s… - [Trunk Tibia Angle](https://docs.uplift.ai/biomechanics/activities/squat/metrics/trunk-tibia-angle.md): Angle between the trunk and tibia segments at the bottom of the squat. - [Trunk Tibia Parallel](https://docs.uplift.ai/biomechanics/activities/squat/metrics/trunk-tibia-parallel.md): Binary indicator of whether the trunk and tibia are parallel (1) or not (0) at bottom. - [Wrist Past Feet](https://docs.uplift.ai/biomechanics/activities/squat/metrics/wrist-past-feet.md): Binary indicator of whether the wrists move in front of the toes or not during an overhead sq… - [Wrists Pass Ankles](https://docs.uplift.ai/biomechanics/activities/squat/metrics/wrists-pass-ankles.md): Whether the wrists move beyond the ankles at maximum wrist height during the SFMA squat, and… - [Overhead Squat](https://docs.uplift.ai/biomechanics/activities/squat/overhead.md): Biomechanical analysis of overhead squat movements, including events, phases, and discrete me… - [SFMA Squat](https://docs.uplift.ai/biomechanics/activities/squat/sfma_squat.md): Biomechanical analysis of SFMA squat movements, including events, phases, and discrete metric… - [Single Leg Squat](https://docs.uplift.ai/biomechanics/activities/squat/single_leg.md): Biomechanical analysis of single leg squat movements, including events, phases, and discrete… - [Plank](https://docs.uplift.ai/biomechanics/activities/stability/plank.md): Biomechanical analysis of plank holds, including side, front, and static stability measuremen… - [SFMA Back Bend](https://docs.uplift.ai/biomechanics/activities/stability/sfma_back_bend.md): Biomechanical analysis of SFMA back bend movement assessment, including shoulder flexion and… - [SFMA Toe Touch](https://docs.uplift.ai/biomechanics/activities/stability/sfma_toe_touch.md): Biomechanical analysis of SFMA toe touch movement assessment, including forward bending and h… - [Single Leg Stance](https://docs.uplift.ai/biomechanics/activities/stability/single_leg_stance.md): Biomechanical analysis of single leg stance balance assessment, including sway measurements a… - [Y-Balance Lower Quarter](https://docs.uplift.ai/biomechanics/activities/stability/y_balance_lower_quarter.md): Biomechanical analysis of Y-Balance lower quarter test, including reach distance and stabilit… - [Y-Balance Upper Quarter](https://docs.uplift.ai/biomechanics/activities/stability/y_balance_upper_quarter.md): Biomechanical analysis of Y-Balance upper quarter test, including reach distance and stabilit… - [Tennis: Backhand](https://docs.uplift.ai/biomechanics/activities/tennis/backhand.md): Biomechanical analysis of tennis backhand strokes. - [Apex](https://docs.uplift.ai/biomechanics/activities/tennis/events/apex.md): Maximum height of the dominant-side wrist joint center during the serve. A proxy for ball con… - [Ball Release](https://docs.uplift.ai/biomechanics/activities/tennis/events/ball-release.md): The estimated timing of the ball toss during the serve. - [Initiation](https://docs.uplift.ai/biomechanics/activities/tennis/events/initiation.md): The start of the tennis serve. - [Low Arm](https://docs.uplift.ai/biomechanics/activities/tennis/events/low-arm.md): The low point of the dominant arm just prior to ball contact. - [Max Shoulder ER](https://docs.uplift.ai/biomechanics/activities/tennis/events/max-shoulder-er.md): The instant of maximum shoulder external rotation between ball release and apex. - [Peak Forearm Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/events/peak-forearm-velocity.md): The instant of peak forearm forward angular velocity, used to determine forward kinematic seq… - [Peak Torso Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/events/peak-torso-velocity.md): The instant of peak torso forward angular velocity, used to determine forward kinematic seque… - [Peak Upper Arm Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/events/peak-upper-arm-velocity.md): The instant of peak upper arm forward angular velocity, used to determine forward kinematic s… - [Termination](https://docs.uplift.ai/biomechanics/activities/tennis/events/termination.md): End of the tennis serve—when the movement is complete. - [Cocking Phase Lack of External Rotation](https://docs.uplift.ai/biomechanics/activities/tennis/flags/cocking-phase-lack-external-rotation.md): Binary indicator if shoulder external rotation (layback) during the cocking phase is below th… - [Contact Phase Arm Out of Slot Position](https://docs.uplift.ai/biomechanics/activities/tennis/flags/contact-phase-arm-out-of-slot-position.md): Binary indicator if the dominant arm is not lifted directly above the body at ball contact. - [Contact Phase Open Pelvis Rotation](https://docs.uplift.ai/biomechanics/activities/tennis/flags/contact-phase-open-pelvis-rotation.md): If pelvis rotation at ball contact is above the acceptable threshold. - [Contact Phase Open Trunk Rotation](https://docs.uplift.ai/biomechanics/activities/tennis/flags/contact-phase-open-trunk-rotation.md): If trunk rotation at ball contact is above the acceptable threshold. - [Landing Phase Excessive Forward Drift](https://docs.uplift.ai/biomechanics/activities/tennis/flags/landing-phase-excessive-forward-drift.md): If the body drifts too far forward after the serve. - [Landing Phase Excessive Forward Lean](https://docs.uplift.ai/biomechanics/activities/tennis/flags/landing-phase-excessive-forward-lean.md): Leaning too far forward after the serve. - [Landing Phase Excessive Side Drift](https://docs.uplift.ai/biomechanics/activities/tennis/flags/landing-phase-excessive-side-drift.md): If the body drifts too far sideways after the serve. - [Landing Phase Excessive Side Lean](https://docs.uplift.ai/biomechanics/activities/tennis/flags/landing-phase-excessive-side-lean.md): Leaning too far sideways after the serve. - [Loading Phase Excessive Knee Valgus](https://docs.uplift.ai/biomechanics/activities/tennis/flags/loading-phase-excessive-knee-valgus.md): If knee valgus exceeds the acceptable threshold on either leg during the loading phase. - [Loading Phase Knee Asymmetry](https://docs.uplift.ai/biomechanics/activities/tennis/flags/loading-phase-knee-asymmetry.md): Binary indicator if there is significant asymmetry in knee flexion between the front and back… - [Loading Phase Lack of Pelvis Coil](https://docs.uplift.ai/biomechanics/activities/tennis/flags/loading-phase-lack-pelvis-coil.md): Binary indicator if pelvis coil is below the acceptable threshold during the loading phase. - [Loading Phase Lack of Pelvis Drop](https://docs.uplift.ai/biomechanics/activities/tennis/flags/loading-phase-lack-pelvis-drop.md): Binary indicator if the pelvis does not sufficiently tilt/drop during the loading phase. - [Loading Phase Lack of Shoulder Drop](https://docs.uplift.ai/biomechanics/activities/tennis/flags/loading-phase-lack-shoulder-drop.md): Binary indicator if the trunk does not sufficiently tilt/drop during the loading phase. - [Loading Phase Lack of Trunk Coil](https://docs.uplift.ai/biomechanics/activities/tennis/flags/loading-phase-lack-trunk-coil.md): Binary indicator if trunk coil is below the acceptable threshold during the loading phase. - [Loading Phase Pinpoint Break](https://docs.uplift.ai/biomechanics/activities/tennis/flags/loading-phase-pinpoint-break.md): If the athlete breaks from a pinpoint stance during loading. - [Release Phase Elbow Not Straight](https://docs.uplift.ai/biomechanics/activities/tennis/flags/release-phase-elbow-not-straight.md): Binary indicator if the non-dominant elbow is not straight enough at ball toss. - [Release Phase Off-Arm to Body Position](https://docs.uplift.ai/biomechanics/activities/tennis/flags/release-phase-off-arm-to-body-position.md): Binary indicator if the ball toss angle is outside the acceptable range at ball release. - [Tennis: Forehand](https://docs.uplift.ai/biomechanics/activities/tennis/forehand.md): Biomechanical analysis of tennis forehand strokes. - [Acceleration Phase Max Elbow Extension Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/acceleration-phase-elbow-extension-velocity.md): Maximum extension velocity of the dominant elbow during the acceleration phase of the serve. - [Acceleration Phase Max Knee Extension Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/acceleration-phase-knee-extension-velocity.md): Maximum knee extension velocity of the front and back leg during the acceleration phase. - [Cocking Phase Max X Factor](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/cocking-phase-max-x-factor.md): Maximum hip-shoulder separation (X-Factor) reached during the cocking phase of the serve. - [Cocking Phase Max Shoulder External Rotation](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/cocking-phase-shoulder-external-rotation.md): Maximum amount of shoulder external rotation during the cocking phase of the serve. - [Cocking Phase Shoulder Horizontal Abduction](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/cocking-phase-shoulder-horizontal-abduction.md): Maximum horizontal abduction of the dominant shoulder during the cocking phase of the serve. - [Cocking Phase Shoulder Hyperangulation](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/cocking-phase-shoulder-hyperangulation.md): Maximum shoulder horizontal abduction during the cocking phase of the serve. - [Contact Phase Elbow Flexion](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-elbow-flexion.md): Amount of elbow flexion at apex (ball contact). - [Contact Phase Pelvis Rotation](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-pelvis-rotation.md): Pelvis rotation angle relative to its starting orientation at apex (ball contact). - [Contact Phase Shoulder Abduction](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-shoulder-abduction.md): Amount of shoulder abduction at apex (ball contact). - [Contact Phase Trunk Flexion](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-trunk-flexion.md): Forward or backward trunk flexion at apex (ball contact). - [Contact Phase Trunk Rotation](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-trunk-rotation.md): Trunk rotation angle relative to its starting orientation at apex (ball contact). - [Contact Phase Trunk Tilt](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-trunk-tilt.md): Degrees of side-side trunk tilt at apex (ball contact). - [Contact Phase Wrist Height](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-wrist-height.md): Height of the wrist at apex (ball contact) measured from the ground. - [Contact Phase Wrist Height (Normalized)](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-wrist-height-normalized.md): Height of the dominant-side wrist at apex (ball contact), expressed as a multiple of athlete… - [Contact Phase Wrist Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-wrist-velocity.md): Linear speed of the wrist joint center at apex (ball contact). - [Contact Phase Wrist Velocity (Normalized)](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-wrist-velocity-normalized.md): Speed of the dominant-side wrist at apex (ball contact), reported alongside the height-normal… - [Contact Phase X Factor](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/contact-phase-x-factor.md): Angle between the shoulders and hips in the transverse plane (twisting) at apex (ball contact… - [Forward Displacement (Normalized)](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/displacement-forward.md): Forward body displacement between ball contact and finish, expressed as a multiple of athlete… - [Open-Side Displacement (Normalized)](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/displacement-open-side.md): Open-side body displacement between ball contact and finish, expressed as a multiple of athle… - [Vertical Displacement (Normalized)](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/displacement-vertical.md): Vertical body displacement between ball contact and finish, expressed as a multiple of athlet… - [Finish Phase Trunk Flexion](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/finish-phase-trunk-flexion.md): Forward or backward trunk flexion at the finish of the serve. - [Finish Phase Trunk Tilt](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/finish-phase-trunk-tilt.md): Lateral (side-to-side) trunk tilt at the finish of the serve. - [Forward Angular Velocity Time Series](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/forward-angular-velocity-time-series.md): Time series of instantaneous forward angular velocity for torso, upper arm, and forearm. Used… - [Forward Kinematic Sequence](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/forward-kinematic-sequence.md): Sequence of peak forward angular velocities (torso, upper arm, forearm). Optimal sequence is… - [Forward Trunk Arm Speedup](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/forward-trunk-arm-speedup.md): Speedup factor of peak forward angular velocities from the torso to the upper arm. - [Forward Upper Arm Forearm Speedup](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/forward-upper-arm-forearm-speedup.md): Speedup factor of peak forward angular velocities from the upper arm to the forearm. - [Handedness](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/handedness.md): Handedness of the athlete (left or right) for the tennis serve. - [Loading Phase Ball Release Angle](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/loading-phase-ball-release-angle.md): Arm angle relative to torso at the instance of ball release - [Loading Phase Max Knee Flexion](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/loading-phase-knee-flexion.md): Maximum knee flexion of the front leg and back leg during the loading phase of the serve. - [Loading Phase Pelvis Tilt](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/loading-phase-pelvis-tilt.md): Maximum pelvis side-side tilt towards the rear during the loading phase of the serve. - [Loading Phase Shoulder Hip Separation](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/loading-phase-shoulder-hip-separation.md): Maximum difference in rotation of the shoulders and hips (separation angle) during the loadin… - [Loading Phase Trunk Tilt](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/loading-phase-trunk-tilt.md): Maximum trunk side-side tilt towards the rear during the loading phase of the serve. - [Max Back Knee Valgus (Normalized)](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/max-back-knee-valgus.md): Maximum inward (valgus) collapse of the back knee during the serve, expressed as a multiple o… - [Max Front Knee Valgus (Normalized)](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/max-front-knee-valgus.md): Maximum inward (valgus) collapse of the front knee during the serve, expressed as a multiple… - [Peak Forearm Forward Angular Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/peak-forearm-forward-angular-velocity.md): Peak forward angular velocity of the forearm segment in the serve direction. - [Peak Pelvis Twist Angular Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/peak-pelvis-twist-angular-velocity.md): Peak twist angular velocity of the pelvis segment in the serve direction. - [Peak Torso Forward Angular Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/peak-torso-forward-angular-velocity.md): Peak forward angular velocity of the torso segment in the serve direction. - [Peak Torso Twist Angular Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/peak-torso-twist-angular-velocity.md): Peak twist angular velocity of the torso segment. - [Peak Upper Arm Forward Angular Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/peak-upper-arm-forward-angular-velocity.md): Peak forward angular velocity of the upper arm segment in the serve direction. - [Peak Upper Arm Twist Angular Velocity](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/peak-upper-arm-twist-angular-velocity.md): Peak twist angular velocity of the upper arm segment. - [Pelvis Coil](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/pelvis-coil.md): Maximum amount of pelvis twist rotation away from the serve direction (preloading the twist b… - [Pelvis Stretch](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/pelvis-stretch.md): Twist range of motion of the pelvis during the serve. - [Release Phase Elbow Angle](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/release-phase-elbow-angle.md): Non-dominant (tossing) elbow flexion angle at ball release. - [Stance Position](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/stance-position.md): Classification of serve stance position: platform or pinpoint. - [Time to Contact](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/time-to-contact.md): Duration from the start of the serve to ball contact. - [Trunk Coil](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/trunk-coil.md): Maximum amount of trunk twist rotation away from the serve direction (preloading the twist be… - [Trunk Stretch](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/trunk-stretch.md): Twist range of motion of the trunk during the serve. - [Twist Kinematic Sequence](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/twist-kinematic-sequence.md): Sequence of peak twist angular velocities (pelvis, torso, upper arm). Optimal sequence is 'pe… - [Twist Pelvis Torso Speedup](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/twist-pelvis-torso-speedup.md): Speedup factor of peak twist angular velocities from the pelvis to the torso. - [Twist Trunk Arm Speedup](https://docs.uplift.ai/biomechanics/activities/tennis/metrics/twist-trunk-arm-speedup.md): Speedup factor of peak twist angular velocities from the torso to the upper arm. - [Tennis: Overhand Serve](https://docs.uplift.ai/biomechanics/activities/tennis/overhand_serve.md): Documentation of tennis overhand events, phases, and metrics. - [Tennis Overhand Serve: Normative Ranges](https://docs.uplift.ai/biomechanics/activities/tennis/tennis-overhand-serve-norms.md): Full percentile reference tables (5th–95th) for tennis overhand serve metrics, broken out by… - [Tennis: Underhand Serve](https://docs.uplift.ai/biomechanics/activities/tennis/underhand_serve.md): Biomechanical analysis of tennis underhand (underarm) serve. - [Track and Field: Discus](https://docs.uplift.ai/biomechanics/activities/track_and_field/discus.md): Biomechanical analysis of discus throw movements, including events, phases, and discrete metr… - [Track & Field: Hammer Throw](https://docs.uplift.ai/biomechanics/activities/track_and_field/hammer_throw.md): Biomechanical analysis of hammer throw movements, including events, phases, and discrete metr… - [Track & Field: High Jump](https://docs.uplift.ai/biomechanics/activities/track_and_field/high_jump.md): Biomechanical analysis of high jump movements, including events, phases, and discrete metrics. - [Track and Field: Shot Put](https://docs.uplift.ai/biomechanics/activities/track_and_field/shot_put.md): Biomechanical analysis of shot put throw movements, including events, phases, and discrete me… - [PR CHECKLIST](https://docs.uplift.ai/PR_CHECKLIST.md) ## OpenAPI Specs - [openapi](https://docs.uplift.ai/api-reference/openapi.json) ## Optional - [Support](https://help.uplift.ai)