Question

Which one of the following choices best represents an advantage of cardiorespiratory fitness?

a: Decrease in muscle mass
b: Decrease in oxygen intake
c: Decrease in bone mass
D: Decrease in fat stores

Answer 1

A, decrease in oxygen intake

Answer 2

Option B is the correct answer.
Increased cardiorespiratory fitness means the body makes more efficient use of oxygen requiring less to function as well or better than when you are less fit as judged on this index.