Question

The strongest muscle contractions are normally achieved by ________.

a.increasing stimulus above the treppe stimulus
b.increasing stimulus above the threshold
c.increasing the stimulation up to the maximal stimulus
d.recruiting small and medium muscle fibers

Answer 1

The strongest muscle contractions are achieved by increasing the stimulation up to the maximal stimulus. Recruitment of larger motor units results in stronger muscle contractions.

Step-by-step explanation:

The strongest muscle contractions are normally achieved by increasing the stimulation up to the maximal stimulus. When more strength is needed, larger motor units are enlisted to activate larger muscle fibers, resulting in an increase in muscle contraction known as recruitment. In some muscles, the largest motor units may generate a force of up to 50 times more than the smallest motor units in the muscle.