Initiative Description: The intervention consisted of physical and organizational changes to the environment: The physical environment changes required included the following components: 1) upgrade existing outdoor areas at the school for PA, including unfixed equipment, 2) develop and build playgrounds specially designed for adolescents: play spots, 3) improve safety for active transport to and from school, 4) establish an after school fitness program. The organizational environment changes included: 5) formulate and implement school PA policy, 6) educate teachers as ‘‘kick-starters’’, who facilitate and motivate PA during recess, 7) establish school play patrol: older students were trained to initiate play and games for minors during school recess, 8) mandatory outdoor recess and/ or free access to gym/sports hall, 9) school traffic patrol: older students helped minors cross the streets near the school, 10) educate and train students in safe cycling, and finally 11) school project/theme week once a year focusing on learning about and doing PA during school lessons.

Study Results: The intervention was positively associated with PA during recess and school time.

Reference: Toftager, M., Christiansen, L. B., Ersbøll, A.,K., Kristensen, P. L., Due, P., & Troelsen, J. (2014). Intervention effects on adolescent physical activity in the multicomponent SPACE study: A cluster randomized controlled trial. PLoS One, 9(6 doi:http://dx.doi.org/10.1371/journal.pone.0099369

Level of Evidence: Very Good