The study is designed to compare two methods of delivering short (~10 min) physical activity
breaks that will occur during the regular school day for 3 years. Schools will be randomized
to deliver physical activity breaks led by either the regular classroom teacher or by a
remote instructor through a video in the classroom. Both delivery methods will promote a
variety of whole body movements using large muscle groups. The schools will not be able to
choose which group (regular teacher or remote instructor) they will be part of.

The purpose of this study is to learn if providing a family-based group program using mobile
health technology (iAmHealthy Healthy Lifestyles Program) is effective at improving child
weight, nutrition, and physical activity.