Effects of Ready for Recess, An Environmental Intervention, on Physical Activity in Third-Through Sixth-Grade Children

Background: The purpose of this study was to determine the effectiveness of Ready for Recess, an elementary school recess intervention targeting staff training (ST) or providing recreational equipment (EQ) separately, and the combination (EQ+ST) on physical activity (PA). Methods: Participants were children attending 1 of 12 elementary schools (grades 3rd–6th) included in the study. Separate analytical models were used to evaluate the effects of...