1LEE I M,SHIROMA E J,LOBELO F,et al.Effect of physical inactivity on major non-communicable diseases worldwide:an analysis of burden of disease and life expectancy[J].Lancet,2012,380:219-229.
2NIGAM A,JUNEAU M.Survival benefit associated with low-level physical activity[J].Lancet,2011,378:1202-1203.
3WHO.Global recommendations on physical activity for health[EB/OL].http://www.who.int/dietphysicalactivity/factsheet_recommen-dations/en/index.html,accessed May 20,2011.
4WEN C P,WAI J,TSAI M K,et al.Minimum amount of physical activity for reduced mortality and extended life expectancy:a prospective cohort study[J].Lancet,2011,378:1244-1253.
2Paschal AM , Lewis - Moss RK , Sly J . Addressing health disparities among Mrican Americans: using the stages of change model to document attitudes and decisions about nutrition and physical activity [J]. J Community Health, 2010, 35 (1) : 10 -17.
