Question

1. what is the purpose of a cool - down phase after exercise?

a. to improve flexibility
b. to build muscle strength
c. to increase heart rate
d. to gradually lower heart rate and prevent muscle soreness

Explanation:

The cool - down phase after exercise helps the body transition from a high - intensity state. It allows the heart rate to gradually return to normal (not increase as in option c). Building muscle strength (option b) is mainly through the exercise itself, not the cool - down. While some stretching in the cool - down can contribute a bit to flexibility, its primary role is related to cardiovascular and muscle recovery. The main purpose is to gradually lower the heart rate (which has been elevated during exercise) and prevent muscle soreness by reducing blood pooling and lactic acid build - up.

Answer:

d. To gradually lower heart rate and prevent muscle soreness