What is the function of the tibialis posterior on the medial longitudinal arch as the leg accepts weight-bearing during standing, walking, or running?
A) Concentrically contracts to lift arch upward
B) Eccentrically contracts to control rate of lowering of arch as leg accepts weight
C) Eccentrically contracts to lift arch upward
D) Concentrically contracts to control rate of lowering of arch as leg accepts weight
Correct Answer:
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