Which fitness component is defined as the ability to perform repeated contractions over time?

• A. Muscular flexibility
• B. Cardiovascular endurance
• C. Muscular endurance
• D. Muscular strength

Answer: (C)

Muscular endurance is the ability of a muscle or muscle group to perform repeated contractions over time. This means the muscle can sustain activity or perform many repetitions before fatiguing. It’s different from muscular strength, which is about producing a large amount of force in a single effort; muscular flexibility, which relates to how far a joint can move; and cardiovascular endurance, which is about how efficiently the heart and lungs supply oxygen during prolonged activity. So when the prompt describes continuing contractions across repetitions, it points to muscular endurance.