Which term describes the ability of a muscle or group of muscles to exert force for extended periods?

• A. Muscle strength
• B. Muscle endurance
• C. Flexibility
• D. Cardiorespiratory endurance

Answer: (B)

Muscular endurance is the ability of a muscle or muscle group to exert force for an extended period. This means sustaining contractions or performing repeated movements without fatiguing quickly. It’s different from muscular strength, which is about the maximum force a muscle can generate in a single effort, and from flexibility, which is about how far a joint can move. It’s also distinct from cardiorespiratory endurance, which reflects the body's efficiency in delivering oxygen to muscles during prolonged aerobic activity. Examples like holding a plank, performing many push-ups with little rest, or cycling steadily for a long distance illustrate muscular endurance in action.