A proper cooling-down period after vigorous aerobic exercise should involve which of the following activities?

A proper cooling-down period after vigorous aerobic exercise is essential for allowing the body to gradually return to its resting state and to prevent potential dizziness or fainting from a sudden stop in activity. Walking serves to decrease the heart rate gradually and helps maintain blood circulation, which can prevent blood from pooling in the legs. Stretching during the cool down helps to improve flexibility, reduce muscle tension, and promote relaxation. By incorporating both walking and stretching, the body effectively transitions from a high-intensity workout to a state of rest, facilitating better recovery and reducing the risk of injury or soreness. Combining these two activities creates a comprehensive cooling-down routine that optimizes the benefits.