What is defined as the amount of force a muscle can exert?

The definition of the amount of force a muscle can exert corresponds to muscular strength. This concept encompasses the maximum amount of force that a muscle or group of muscles can generate during a single contraction. Muscular strength is a key element of fitness, often assessed through exercises such as one-repetition maximum lifts or various strength tests.

Muscular endurance, on the other hand, refers to the ability of a muscle to perform repeated contractions over time without fatigue, which is distinct from the concept of maximum force output. Muscle power involves both the speed and force of muscle contractions, crucial in explosive movements but not solely focused on the amount of force. Muscle size may influence strength to some extent, but it does not directly define the force output itself. Understanding these distinctions is essential in kinesiology and evaluating physical performance.