脚注
＊1 Lee IM et al. Association of Step Volume and Intensity With All-Cause Mortality in Older Women. JAMA Intern Med.2019;179（8）:1105-1112.
＊2 Saint-Maurice PF et al. Association of Daily Step Count and Step Intensity With Mortality Among US Adults. JAMA.2020;323（12）:1151-1160.
＊3 Althoff T et al. Large-scale physical activity data reveal worldwide activity inequality. Nature. 2017;547（7663）:33 6-33 9.
＊4 Lee DC et al. Running as a Key Lifestyle Medicine for Longevity. Prog Cardiovasc Dis.2017;60（1）:45-55.
＊5 Physical Activity Guidelines for Americans, 2nd edition. U.S. Department of Health and Human Services. 2018.
