For a weight to be lifted, which of the following must occur?
A) isotonic muscle contraction with a force less than the load
B) isometric muscle contraction with a force greater than the load
C) isotonic muscle contraction with a force greater than the load
D) either isometric or isotonic muscle contraction with a force greater than the load
E) either isotonic muscle contraction with a force greater than the load or a force less than the
load
Ans: C) isotonic muscle contraction with a force greater than the load
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