Which of the following is a health-related fitness component?

• A. Agility
• B. Anaerobic power
• C. Explosive leg power
• D. Cardiovascular endurance

Answer: (D)

Health-related fitness components focus on how well the body supports health and daily function. Cardiovascular endurance measures how efficiently the heart, lungs, and circulatory system deliver oxygen to working muscles during extended activity, making it a key indicator of overall health and the ability to sustain effort over time. This type of fitness improves with regular aerobic activity like walking, running, cycling, or swimming. The other items describe skills more related to performance in specific activities: agility involves quick changes of direction and balance; anaerobic power and explosive leg power gauge the ability to produce energy rapidly in short bursts. These are important for performance but are categorized as skill-related components rather than directly tied to general health. So the health-related fitness component is cardiovascular endurance.