What is muscle strength defined as?

Muscle strength is defined as the greatest amount of force a muscle can produce with a single maximal effort. This definition focuses on the maximum capability of a muscle or a group of muscles to exert force against resistance. Strength typically involves activities such as lifting weights or performing exercises that require a high level of exertion over a short duration.

In contrast, options that involve maintenance of posture refer to muscle endurance rather than strength. The ability to perform extended repetitive movements relates more to muscular endurance and the capacity to sustain activity over time. Finally, the total weight lifted in a session provides a measure of overall training volume but does not specifically capture the concept of muscle strength as defined by the maximum force exerted in a single effort. Hence, the definition emphasizing maximal force production is the most accurate reflection of muscle strength.