Table 1.

Definitions of physical inactivity for various age ranges

Age Range	Frequency & Duration	Type of Physical Activity
5–17 yr	<60 min/day	Including both moderate- or vigorous-intensity aerobic, including some muscle strengthening
>18 yr	<150 min/wk	<150 min/wk of either moderate- or vigorous-intensity aerobic, or <75 min/week of mixed moderate and high-intensity aerobic, preferably spread throughout the week; plus 2 days/wk of resistance training involving moderate to high intensities for all major muscle groups