Answer to Question 1
The purpose of a warm-up is to elevate muscle temperature and increase blood ow to those muscles that will be
engaged in the workout. A primary purpose of a cool-down is to allow blood to be returned from the muscles back
to the heart.
Answer to Question 2
he 10 rule states that the training intensity or duration of exercise should not be increased by more than 10 per
week. This is a common sense guideline for improving physical tness and avoiding overuse injuries