Which term describes the ability to perform activities for an extended period focusing on heart and lung function?

Which term describes the ability to perform activities for an extended period focusing on heart and lung function?

• A. Cardiovascular Endurance
• B. Muscular Strength
• C. Isotonic Exercise
• D. Flexibility

Answer: (A)

This describes the body's capacity to sustain activity over time by using the heart and lungs efficiently. Cardiovascular endurance refers to how well the heart, lungs, and circulatory system work together to deliver oxygen to muscles during prolonged activity and to remove waste products. It underpins performance in activities like running, cycling, and swimming, and it improves with regular aerobic training that gradually increases duration or intensity. Muscular strength measures how much force a muscle can produce in a single effort, isotonic exercise is a mode of contraction with movement against a constant load, and flexibility is about how far a joint can move.

This describes the body's capacity to sustain activity over time by using the heart and lungs efficiently. Cardiovascular endurance refers to how well the heart, lungs, and circulatory system work together to deliver oxygen to muscles during prolonged activity and to remove waste products. It underpins performance in activities like running, cycling, and swimming, and it improves with regular aerobic training that gradually increases duration or intensity. Muscular strength measures how much force a muscle can produce in a single effort, isotonic exercise is a mode of contraction with movement against a constant load, and flexibility is about how far a joint can move.