FIGURE 1.

Proportion of Adults in the United States Meeting the 2008 Physical Activity Guidelines for Americans. The proportion of young, middle-aged, and older adults who self-report meeting only the aerobic exercise guidelines of 150 min per week of moderate-intensity or 75 min per week of vigorous-intensity aerobic exercise, only the muscle strengthening guidelines of activities that strengthen the major muscle groups at least two times per week, or both aerobic and muscle strengthening guidelines concurrently. As age increases, self-reported adherence to exercise guidelines declines. A greater proportion of adults meet aerobic exercise guidelines than muscle strengthening guidelines in all age categories. AET, aerobic exercise training; RET, resistance exercise training. Adapted from public-use data provided by National Center for Health Statistics (2018).