Fig 3. Determination of gait events used to track the peak net joint moments.

(A) Illustrative joint moments at the hip (solid line), knee (dashed line), and ankle (dotted line) with peak moments indicated. (B) Sample mean angular displacement of the hip (solid line), knee (dashed line), and ankle (dotted line) with gait events used to track peak moments indicated (open diamond, A-plant; crosses, K-flex and K-ext; filled circle, H-ext). (C) Sample mean vertical ground reaction force (solid line) and estimated antero-posterior ground reaction force (dashed line) with gait events used to track peak moments indicated (filled circle, H-flex; open diamond, A-dors). See text for definitions of peak moments and gait events.