School-based physical activity interventions for adolescents: to what extent do they prove effective, and which intervention methods and strategies seem most promising?: a scoping review of studies conducted between 2010-2016

Abstract

Background: According to the recommendations from WHO, children and adolescents should participate in at least 60 minutes of PA a day in moderate to vigorous intensity, but WHO report that more than 80% of the world's adolescent population is insufficiently physically active. School-based interventions are thought to be the most efficient setting in changing the total level of physical activity for children and adolescents. Objective: The aim of this study is to conduct a systematically review of the single school-based intervention studies that have been conducted since 2010, focusing on change in objectively measured physical activity and BMI . An additional objective is to examine study effectiveness in light of intervention methods and approaches used.