(A) Dyer test
(B) Macdonald test
(C) Harvard step test
(D) None of these
🧠 Explanation:
- The Harvard Step Test is a widely used assessment to measure cardiorespiratory fitness and endurance.
- It involves stepping up and down on a platform at a set rate for a specific duration, usually 5 minutes, followed by monitoring the heart rate during recovery.
- The test evaluates how quickly the heart returns to normal after physical exertion — a key indicator of cardiovascular efficiency.
- Other options like Dyer test and Macdonald test are not recognized standard tests for cardiorespiratory fitness.