American Journal of Public Health · 2010 · 99 citations · 35 references
Because few public elementary schools in the United States provide daily physical education or its equivalent for all students throughout the school year, noncurriculum approaches to increasing children's physical activity are important. Renovated schoolyards increase the number of children who are physically active, as well as their overall activity levels, and reduce sedentary behaviors.
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Prevalence and Trends in Overweight Among US Children and Adolescents, 1999-2000
Cynthia L. Ogden · JAMA · 2002 · 4.1K citations
Contribution of Public Parks to Physical Activity
Deborah A. Cohen, Thomas L. McKenzie, Amber Sehgal et al. · American Journal of Public Health · 2007 · 970 citations · Full text