What term refers to the amount of force produced during a voluntary muscular contraction?

The term that refers to the amount of force produced during a voluntary muscular contraction is strength. Strength specifically denotes the maximal amount of force that a muscle or group of muscles can generate during a single contraction. It is a key physical fitness component, particularly important in physical therapy and rehabilitation settings where restoring or improving muscle function is crucial.

Power, while related, emphasizes the rate at which work is performed or the speed of force production rather than the total force itself. Endurance focuses on the ability of a muscle to sustain repeated contractions over time, which differs from the sheer amount of force generated in a single contraction. Force, in a more general sense, refers to any push or pull on an object but does not specifically encapsulate the aspect of voluntary muscle contraction associated with strength. Thus, strength is the most accurate term for what is being described in the question.