Obesity Prevention for Pre-Adolescents

To develop and evaluate, in a randomized controlled trial, a comprehensive obesity prevention program for third, fourth and fifth grade students. The intervention includes activities in THE SCHOOL, THE HOME, and a clinically oriented component for HIGH-RISK CHILDREN. In addition, the intervention will be delivered over a 3 year period, with age and grade-appropriate components for 3rd, 4th and 5th graders and their families. The primary outcome is body mass index. PRIMARY OBJECTIVE: To significantly reduce body mass index, compared to controls, at the end of the three year intervention.