The First National Study of Neighborhood Parks

IntroductionAn extensive infrastructure of neighborhood parks supports leisure time physical activity in most U.S. cities; yet, most Americans do not meet national guidelines for physical activity. Neighborhood parks have never been assessed nationally to identify their role in physical activity.MethodsUsing a stratified multistage sampling strategy, a representative sample of 174 neighborhood parks in 25 major cities (population >100,000)...