What is the training effect?

A. The tendency to suffer injuries as a result of too much exercise

B. Shortness of breath and dizziness caused by overexertion

C. An increase in the resting heart rate and a decrease in the stroke volume of the heart

D. A term that describes the many physiological changes resulting from participation in vigorous muscular fitness activities

i think most of them are possible but can you give me your guess ?

1 answer

My best guess is D.