Initiative Description: Electronic databases were searched to identify studies that (1) involved healthy adolescents (11–18 years old), (2) investigated school‐environmental influences and (3) reported a physical activity and/or sedentary behaviour outcome or theme.

Study Results: Ninety‐three papers of mixed methodological quality were included. A range of school‐based policy (e.g. break time length), physical (e.g. facilities) and social‐environmental (e.g. teacher behaviours) factors were associated with adolescent physical activity, with limited research on sedentary behaviour

Reference: Morton, K. L., Atkin, A. J., Corder, K., Suhrcke, M., & Sluijs, E. F. (2016). The school environment and adolescent physical activity and sedentary behaviour: a mixed-studies systematic review. Obesity Reviews, 17(2), 142-158. doi:10.1111/obr.12352

Level of Evidence: Very Good