Table 1. Selection of anthropometric, temporal and kinematic variables investigated. Flexion is positive, extension negative. Parameter name Variable Measure Comments Impact Velocity IV m·s-1 Euclidean norm of velocity vector of the ankle marker (lateral malleolus) at impact Thigh Length TL m - Shank Length SL m - Body Mass BM kg - Pelvic Tilt Velocity Minimum Timing TVPmin % duration from take-off to instant of occurrence (time normalized) Hip Flexion Velocity Maximum Timing TVHmax % duration from take-off to instant of occurrence (time normalized) Knee Flexion Velocity Minimum Timing TVKmin % duration from take-off to instant of occurrence (time normalized) Pelvic Tilt Velocity Maximum Timing TVPmax % duration from take-off to instant of occurrence (time normalized) Hip Flexion Velocity Minimum Timing TVHmin % duration from take-off to instant of occurrence (time normalized) Knee Flexion Velocity Maximum Timing TVKmax % duration from take-off to instant of occurrence (time normalized) Pelvic Tilt Angle APT ° joint angle difference between minimum and at impact Hip Flexion Angle AHF ° joint angle difference between maximum and at impact Knee Flexion Angle AKF ° joint angle difference between minimum and at impact Pelvic Tilt Velocity VPT °·s-1 segment angular velocity at impact Hip Flexion Velocity VHF °·s-1 joint angular velocity at impact Knee Flexion Velocity VKF °·s-1 joint angular velocity at impact