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Technical Details

  • Variable Type: Discrete Metric
  • Data Type: Float
  • Units: degrees
  • Column Name: Varies by phase and type; see Events/Phases
  • Measurement: Maximum ankle flexion angle during the specified phase,

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Events / Phases

  • During Takeoff: Maximum ankle flexion during the jumping phase (initiation to Takeoff).
    • Column examples: jumping_left_ankle_peak_flexion_angle, jumping_right_ankle_peak_flexion_angle (bilateral); jumping_ankle_peak_flexion_angle (single-leg).
  • During Landing: Maximum ankle flexion during the landing absorption phase (Landing to Landing Bottom).
    • Column examples: landing_left_ankle_peak_flexion_angle, landing_right_ankle_peak_flexion_angle (bilateral); landing_ankle_peak_flexion_angle (single-leg).

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Description

Peak ankle flexion refers to the maximum ankle dorsiflexion angle during takeoff or landing. It reflects ankle range of motion, loading, and absorption, and can also help identify side-side asymmetries. The side and phase determines which column name applies.

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Use Cases

  • Ankle contribution and stiffness
  • Landing absorption and technique
  • Lower extremity sequencing and ROM