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Overview

The single leg broad jump is a unilateral horizontal jumping movement assessment that evaluates an athlete’s ability to generate horizontal power and maintain stability on one leg during landing. This movement is commonly used in athletic assessment and training as it provides valuable information about unilateral horizontal power, balance, and lower extremity function.

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Instructions

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Dimensions

Required inputs for processing:
  • Arm Position: [‘arm-swing’,‘hands-on-hips’]
  • Footedness: [‘left’,‘right’]

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Events

MetricDescriptionColumn Name
Initiationthe start of the jump - when the person begins to move downwawrd“
Bottomthe lowest point of the pelvis before the jump“
Takeoffthe instant of leaving the ground“
Peak Heightthe instant when maximum height reached“
Landingthe instant of ground contact“
Landing Bottomthe lowest point of the pelvis after the jump“
Terminationend of the movement - when the person returns to normal standing position“

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Phases of the Jump

PhaseStartEnd
JumpingInitiationTakeoff
Jumping EccentricInitiationBottom
Jumping ConcentricBottomTakeoff
LandingLandingTermination
Landing EccentricLandingLanding Bottom
Landing ConcentricLanding BottomTermination

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Discrete Metrics

MetricUnitsDescriptionColumn Name
Jump HeightmetersMaximum height reached during the jump“
Flight TimesecondsTime from takeoff to landing“
Takeoff Velocitym/sVertical velocity at takeoff“
RSI ModN/AReactive Strength Index Modified“
Right Valgus BottommetersRight knee valgus at bottom position“
Left Valgus BottommetersLeft knee valgus at bottom position“
Right Valgus LandingmetersRight knee valgus at landing“
Left Valgus LandingmetersLeft knee valgus at landing“
Right Valgus Landing BottommetersRight knee valgus at landing bottom“
Left Valgus Landing BottommetersLeft knee valgus at landing bottom“
Right Valgus Landing FullmetersMaximum right knee valgus during landing“
Left Valgus Landing FullmetersMaximum left knee valgus during landing“
Eccentric Hip Knee DominanceratioHip-knee dominance during eccentric phase (0=hip dominant, 1=knee dominant)“
Concentric Hip Knee DominanceratioHip-knee dominance during concentric phase (0=hip dominant, 1=knee dominant)“
Landing Hip Knee DominanceratioHip-knee dominance during landing phase (0=hip dominant, 1=knee dominant)“
Right DisplacementmetersLateral displacement during landing“
Forward DisplacementmetersForward displacement during landing“
Landing Stiffness IndexN/AIndex of landing stiffness“
Landing Stiffness Index LevelN/AClassification of landing stiffness“
Eccentric Velocitym/sAverage velocity during eccentric phase“
Knees TrackbinaryBinary indicator if knees track properly (1=yes, 0=no)“
Hips Feet StationarybinaryBinary indicator if hips and feet remain stationary“
High Jump HeightbinaryBinary indicator if jump height exceeds 14 inches“
Stiff Knee LandingbinaryBinary indicator of stiff knee landing“
Left Peak Hip Flexion TakeoffdegreesMaximum left hip flexion during takeoff“
Right Peak Hip Flexion TakeoffdegreesMaximum right hip flexion during takeoff“
Left Peak Knee Flexion TakeoffdegreesMaximum left knee flexion during takeoff“
Right Peak Knee Flexion TakeoffdegreesMaximum right knee flexion during takeoff“
Left Peak Ankle Flexion TakeoffdegreesMaximum left ankle flexion during takeoff“
Right Peak Ankle Flexion TakeoffdegreesMaximum right ankle flexion during takeoff“
Left Peak Hip Flexion Velocity Takeoff Eccentricdegrees/sMaximum left hip flexion velocity during eccentric phase“
Right Peak Hip Flexion Velocity Takeoff Eccentricdegrees/sMaximum right hip flexion velocity during eccentric phase“
Left Peak Knee Flexion Velocity Takeoff Eccentricdegrees/sMaximum left knee flexion velocity during eccentric phase“
Right Peak Knee Flexion Velocity Takeoff Eccentricdegrees/sMaximum right knee flexion velocity during eccentric phase“
Left Peak Ankle Flexion Velocity Takeoff Eccentricdegrees/sMaximum left ankle flexion velocity during eccentric phase“
Right Peak Ankle Flexion Velocity Takeoff Eccentricdegrees/sMaximum right ankle flexion velocity during eccentric phase“
Peak COM Velocity Takeoff Eccentricm/sMaximum center of mass velocity during eccentric phase“
Left Peak Shoulder Flexion Velocity Takeoff Concentricdegrees/sMaximum left shoulder flexion velocity during concentric phase“
Right Peak Shoulder Flexion Velocity Takeoff Concentricdegrees/sMaximum right shoulder flexion velocity during concentric phase“
Left Peak Hip Extension Velocity Takeoff Concentricdegrees/sMaximum left hip extension velocity during concentric phase“
Right Peak Hip Extension Velocity Takeoff Concentricdegrees/sMaximum right hip extension velocity during concentric phase“
Left Peak Knee Extension Velocity Takeoff Concentricdegrees/sMaximum left knee extension velocity during concentric phase“
Right Peak Knee Extension Velocity Takeoff Concentricdegrees/sMaximum right knee extension velocity during concentric phase“
Left Peak Ankle Extension Velocity Takeoff Concentricdegrees/sMaximum left ankle extension velocity during concentric phase“
Right Peak Ankle Extension Velocity Takeoff Concentricdegrees/sMaximum right ankle extension velocity during concentric phase“
Peak COM Velocity Takeoff Concentricm/sMaximum center of mass velocity during concentric phase“
Left Peak Hip Flexion LandingdegreesMaximum left hip flexion during landing“
Right Peak Hip Flexion LandingdegreesMaximum right hip flexion during landing“
Left Peak Knee Flexion LandingdegreesMaximum left knee flexion during landing“
Right Peak Knee Flexion LandingdegreesMaximum right knee flexion during landing“
Left Peak Ankle Flexion LandingdegreesMaximum left ankle flexion during landing“
Right Peak Ankle Flexion LandingdegreesMaximum right ankle flexion during landing“
Left Peak Hip Flexion Velocity Landing Eccentricdegrees/sMaximum left hip flexion velocity during landing eccentric phase“
Right Peak Hip Flexion Velocity Landing Eccentricdegrees/sMaximum right hip flexion velocity during landing eccentric phase“
Left Peak Knee Flexion Velocity Landing Eccentricdegrees/sMaximum left knee flexion velocity during landing eccentric phase“
Right Peak Knee Flexion Velocity Landing Eccentricdegrees/sMaximum right knee flexion velocity during landing eccentric phase“
Left Peak Ankle Flexion Velocity Landing Eccentricdegrees/sMaximum left ankle flexion velocity during landing eccentric phase“
Right Peak Ankle Flexion Velocity Landing Eccentricdegrees/sMaximum right ankle flexion velocity during landing eccentric phase“
Peak COM Velocity Landing Eccentricm/sMaximum center of mass velocity during landing eccentric phase“
Left Peak Hip Extension Velocity Landing Concentricdegrees/sMaximum left hip extension velocity during landing concentric phase“
Right Peak Hip Extension Velocity Landing Concentricdegrees/sMaximum right hip extension velocity during landing concentric phase“
Left Peak Knee Extension Velocity Landing Concentricdegrees/sMaximum left knee extension velocity during landing concentric phase“
Right Peak Knee Extension Velocity Landing Concentricdegrees/sMaximum right knee extension velocity during landing concentric phase“
Left Peak Ankle Extension Velocity Landing Concentricdegrees/sMaximum left ankle extension velocity during landing concentric phase“
Right Peak Ankle Extension Velocity Landing Concentricdegrees/sMaximum right ankle extension velocity during landing concentric phase“
Peak COM Velocity Landing Concentricm/sMaximum center of mass velocity during landing concentric phase“
Kinematic SequenceN/ASequence of peak velocities during the jump“
Kinematic Sequence ArrayN/AArray representation of kinematic sequence“

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Notes

  • Kinematic data typically captured at 120Hz for Jumping