5: Physical Activity Last updated Save as PDF Page ID 34835 Learning Objectives Describe the health benefits of physical activity Explain the differences between aerobic and muscle-strengthening physical activity 5.1: The Relationship between Physical Activity and Health 5.2: Aerobic, Muscle-Strengthening, and Bone-Strengthening Activity 5.3: Health Benefits of Physical Activity 5.4: Dealing with Inactivity 5.5: Safe and Activity 5.6: Pregnancy and Disabilities 5.7: Community Efforts to Increase Physical Activity