Frequency Needed for School-based Obesity Intervention

The intervention consisted of nutrition lessons based on the traffic light diet, circuit-based physical activity, behavior modification techniques (token economy system, goal setting, self-monitoring), and parental involvement (materials sent home and monthly parent meetings). 80% of time was spent on physical activity and 20% was spent on nutrition. Behavior modification was incorporated into both physical activity and nutrition time. Specifically, instruction and activity time during PE class lasted approximately 40 minutes.