What is muscular endurance?

Muscular endurance refers to the ability of a muscle or muscle group to perform repeated contractions over an extended period of time without becoming fatigued. This is essential for activities that require sustained effort, such as long-distance running, cycling, or swimming, where the muscles must continue to exert force repeatedly for an extended duration.

In this context, muscular endurance is vital for both everyday tasks and athletic performance, as it helps in maintaining physical activity without tiring quickly. It is distinct from other concepts of fitness, such as maximum strength or flexibility, which relate to the capacity to lift heavy weights or the range of motion in joints, respectively. Thus, the ability of muscles to perform repeated actions accurately defines muscular endurance.