Reference
- Lonsdale , C. , Rsenkranz , R. R , Peralta , L. R. , Bennie , A. , Fahey , P. and Lubans , D. R. 2013 . A systematic review and meta-analysis of interventions designed to increase moderate-to-vigorous physical activity in school physical education lessons . Preventive Medicine , 56 : 152 – 161 . doi: 10.1016/j.ypmed.2012.12.004.