This study measures the nationwide participation rates of girls and boys in exercise and organized team sports. The central focus is on how the intersections among families, schools and communities are related to children's involvement and interest in athletics and physical activity. Some of the personal and social benefits associated with…

New Jersey After 3 (NJ After 3) is a private, nonprofit organization whose mission is to expand and improve afterschool opportunities for New Jersey's youth. Using both public and private resources, it supports a network of youth-service providers that deliver afterschool services based on NJ After 3's program model. Under an agreement with NJ…