1. Physical activity guidelines advisory committee report, 2008,2008
2. 2008 physical activity guidelines for Americans;U.S. Department of Health and Human Services,2008
3. Summary health statistics for U.S. adults: National Health Interview Survey, 2011;Schiller;Vital Health Stat,2012
4. The burden of physical activity-related ill health in the UK;Allender;J Epidemiol Community Health,2007
5. Economic costs of obesity and inactivity;Colditz;Med Sci Sports Exerc,1999