During closed chain pronation, ____________________
a. the lower limb medially rotates, creating a flexion moment at the knee
b. the lower limb laterally rotates, creating a flexion moment at the knee
c. the lower limb medially rotates, creating an extension moment at the knee
d. the lower limb laterally rotates, creating an extension moment at the knee
ANS: A
During closed chain pronation, the talus drops medially, causing the tibia to follow in an inferior and medial direction and causing medial rotation. Due to this medial rotation of the tibia, the knee unlocks and flexes.
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