Exercise Physiology: Theory and Application to Fitness and Performance 9th Edition by Scott Powers, Edward Howley

Exercise 4

What is the difference between “exercise” and “physical activity”?

Step 1 of 2

Any form of muscular activity is called Physical Activity (PA). The energy expenditure during physical activity is proportional to the muscular work. Activities like walking, doing work that involves muscles, and those works that are part of daily routine all come under physical activity. Physical activity is not a planned activity and is not done with goal of maintaining fitness.