The strength of a muscle contraction is influenced by the:

Question

Quizplus · Accepted Answer

The strength of a muscle contraction is influenced by the amount of load, initial length of muscle fibers, and recruitment of motor units. The amount of load affects the tension generated by the muscle fibers, while the initial length of muscle fibers affects the overlap between actin and myosin filaments, which influences the force-generating capacity of the muscle. The recruitment of motor units refers to the number of motor units activated to generate force, and is an important determinant of the overall strength of muscle contraction. Therefore, all of the above factors are correct in influencing the strength of a muscle contraction.

The Strength of a Muscle Contraction Is Influenced by The