Which of the following statements best describes the windlass mechanism of the plantar aponeuroses (fascia)?
a. Passive flexion of the big toe causes the medial longitudinal arch to elevate.
b. Tension on the lateral calcaneus causes the lateral longitudinal arch to elevate.
c. Passive extension of the big toe causes the medial longitudinal arch to elevate.
d. Tension causes the axes of the midtarsal joints to become more parallel at push-off.
ANS: C
During push-off of the gait cycle, passive tension from the plantar aponeuroses causes the medial longitudinal arch to elevate.
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