Explain why the greatest benefits to cardiorespiratory fitness come from sustained physical activities like running, walking and cycling.

The answer is Strengthens the heart muscles, allowing them a suitable capacity.

Explanation:

Sustained physical activity such as running, walking or cycling, are essential for the maintenance and improvement of health and the prevention of diseases, for all people of any age, since it contributes to the prolongation of life and to improve its quality , through physiological benefits, such as reducing the risk of cardiovascular disease, high blood pressure, or even diabetes, because the muscles of the heart are strengthened, allowing them to work properly, as well as, it improves the ability to make efforts without fatigue.