What is the effort (E) and what is the resistance (R) acting on the femur during flexion of the knee of the supporting leg when going down a step?
A) E = concentric contraction of the hamstring, R = weight
B) E = concentric contraction of the vasti, R = weight
C) E = weight, R = eccentric contraction of the hamstrings
D) E = weight, R = eccentric contraction of the vasti
Correct Answer:
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