SFMA Squat

Overview

Events

MetricData TypeDescription
InitiationIntthe start of the squat
Descent StartIntthe start of downward movement
BottomIntthe instant of maximum squat depth
Bottom1Intthe first instance of maximum squat depth
Ascent StartIntthe start of upward movement
EndIntthe end of the movement

Phases and Stages of the Squat

PhaseStageStartEndEvent or Phase
PreparationSetupInitiationDescent StartPhase
DescentEccentricDescent StartBottomPhase
AscentConcentricBottomEndPhase

Discrete Metrics

MetricData TypeUnitsDescription
DepthFloatmetersVertical displacement of pelvis from start to bottom
Maximum Trunk AngleFloatdegreesMaximum trunk angle relative to vertical
Maximum Left Hip AngleFloatdegreesMaximum left hip flexion angle
Maximum Right Hip AngleFloatdegreesMaximum right hip flexion angle
Maximum Left Knee AngleFloatdegreesMaximum left knee flexion angle
Maximum Right Knee AngleFloatdegreesMaximum right knee flexion angle
Maximum Left Ankle AngleFloatdegreesMaximum left ankle flexion angle
Maximum Right Ankle AngleFloatdegreesMaximum right ankle flexion angle
Wrists Pass AnklesIntN/AWhether wrists move beyond ankles (1) or not (0)
Wrists Pass Ankles DistanceFloatmetersDistance between wrists and ankles at maximum wrist height
Hips Pass KneesIntN/AWhether hips go below knees (1) or not (0)
Hips Pass Knees DistanceFloatmetersDistance between hips and knees at maximum hip depth
FunctionalIntN/AWhether movement is functional (1) or not (0) based on whether both hips pass knees and wrists pass ankles

Notes

  • All angular measurements follow ISB conventions
  • Kinematic data typically captured at 240Hz for Squatting