What does muscular endurance refer to?

Muscular endurance specifically refers to the ability of a muscle or group of muscles to continue performing repeated contractions over an extended period without significant fatigue. This quality is crucial in activities that require sustained energy output, such as running, cycling, or any exercise that involves performing the same movement multiple times. Instead of focusing solely on how strong muscles are or how quickly they can contract, muscular endurance emphasizes stamina and the capacity to endure ongoing physical exertion. This is essential for various physical activities, helping individuals maintain performance over longer durations without tiring out.

Other concepts, such as muscle strength, muscle contraction speed, and tendon flexibility, are related but distinctly different from muscular endurance, which is specifically about sustaining activity.