Question

multiple choice question
in ______, a muscle is given repeated stimuli that allows the force of the contraction to increase.
o fatigue
o twitch
o summation

Explanation:

Muscle summation occurs when a muscle receives repeated stimuli leading to an increase in contraction force. Fatigue is the decline in muscle performance over time, and a twitch is a single, brief muscle contraction.

Answer:

C. summation