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Technical Details

  • Variable Type: Discrete Metric
  • Data Type: Float
  • Units: degrees/s
  • Column Name: Varies by phase (see Events/Phases); left/right in bilateral, single value in single-leg
  • Measurement: Maximum rate of change of knee angle during the specified concentric phase

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Events / Phases

This metric can be reported during the following concentric phases:
  • Takeoff Concentric: From Bottom to Takeoff.
    • Maximum knee extension velocity during the propulsive jumping phase.
    • Column examples: jumping_left_knee_peak_extension_velocity, jumping_right_knee_peak_extension_velocity (bilateral); jumping_knee_peak_extension_velocity (single-leg).
  • Landing Concentric: From Landing Bottom to Termination.
    • Maximum knee extension velocity during the stand-up phase.
    • Column names vary by implementation; left/right in bilateral.

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Description

Peak knee extension velocity is the maximum angular velocity of knee extension during a concentric phase—either the push phase of the jump (takeoff concentric) or the stand-up phase after landing (landing concentric). It reflects knee power and contribution to takeoff or recovery. The phase determines which column name applies.

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Use Cases

  • Knee power and contribution to jump or stand-up
  • Kinematic sequence and timing
  • Technique and training assessment