Exercise 37

Exercise 37

Page 24

Part 2

Aerobic Exercise

Jeremy and Nancy believe exercise is important. They go to an exercise class three times a week. They like aerobic exercise.

Aerobic exercise is a special type of exercise. It increases a person’s heart rate. Fast walking, running, and dancing are examples of aerobic exercise. During aerobic exercise, a person’s heart beats fast.

This brings more oxygen to the muscles. Muscles work longer when they have more oxygen.

Right now, Jeremy and Nancy are listening to some lively music. They are doing special dance steps. They are exercising different parts of their body.

How about you? Do you like to exercise? Do your muscles get exercise every week? Do you do some type of aerobic exercise?