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Figure 3


Fig. 3. Group mean sagittal plane net joint moments (A–C) and powers (D–F) for the hip, knee and ankle during walking with stride rates above (+20%), below (–20%), and at the preferred rate. The ±10% conditions have been omitted for clarity, but were generally intermediate to the preferred and ±20% conditions. Moments have been normalized to body weight (BW) and leg length (LL), and powers have been normalized to body mass. At higher stride rates there were larger moments and more power produced at the hip joint, and smaller moments and less power produced at the ankle joint. The knee joint was the major site of energy absorption, with more absorption occurring at higher stride rates. Flex, flexion; ext, extension; Gen, generation; Abs, absorption; PF, plantarflexion; DF, dorsiflexion.





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