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Title
Moderate-to-vigorous physical activity from ages 9 to 15 years.
Authors
Nader, Philip R; Bradley, Robert H; Houts, Renate M; McRitchie, Susan L; O'Brien, Marion
Abstract
Decreased physical activity plays a critical role in the increase in childhood obesity. Although at least 60 minutes per day of moderate-to-vigorous physical activity (MVPA) is recommended, few longitudinal studies have determined the recent patterns of physical activity of youth.