Which of the following is a factor that affects the velocity and duration of muscle contraction? a) number of muscle fibers stimulatedb) size of the muscle fibers stimulatedc) load on the fiberd) muscle length

D) Muscle length

Explanation:

Muscle length determines its ability to produce enough strength for the task that requires it. This is so because, in human anatomy, the muscle has various types of muscle fibers. Some are longer and others are shorter. However, the optimal distribution of these fibers over the muscle (that is, that their different lengths are balanced) will make it possible to concentrate the necessary force.

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