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

Exercise 4

Physical inactivity was long considered only a secondary risk factor. What “proof did investigators have to offer to convince the scientific community otherwise?

Step 1 of 2

Physical inactivity was long believed to be weakly associated with heart diseases. However, studies conducted by Powell et al. revealed that physical activity plays an important role in primary prevention of coronary heart diseases (CHD). They also found that the more is the level of physical inactivity, the more is the chance of onset of CHD.