Sutphin, Michael D.2015-10-292015-10-292010-06-03http://hdl.handle.net/10919/63197The U.S. Department of Health and Human Services recommends that children and adolescents engage in an hour or more of physical activity daily to improve their cardiovascular fitness and muscle strength and reduce their chance of developing chronic health problems in adulthood.In CopyrightVirginia Cooperative ExtensionPress releaseVirginia Tech. University Relations