Kids playing video gamesStatistics on physical activity and sedentary behaviors among 9th through 12th grade students from 2011, the most recent year studied, show that 51.8% attended physical education classes on one or more days in an average week. Among these same students, 32.4% watched television three or more hours per day while 31.1% used computers three or more hours per day.

-Source: Trends in the Prevalence of Physical Activity and Sedentary Behaviors National YRBS: 1991-2011, Youth Risk Behavior Survey