Physical activity at midlife in relation to successful survival in women at age 70 years or older
- PMID: 20101015
- PMCID: PMC3024209
- DOI: 10.1001/archinternmed.2009.503
Physical activity at midlife in relation to successful survival in women at age 70 years or older
Abstract
Background: Physical activity is associated with reduced risks of chronic diseases and premature death. Whether physical activity is also associated with improved overall health among those who survive to older ages is unclear.
Methods: A total of 13,535 Nurses' Health Study participants who were free of major chronic diseases at baseline in 1986 and had survived to age 70 years or older as of the 1995-2001 period made up the study population. We defined successful survival as no history of 10 major chronic diseases or coronary artery bypass graft surgery and no cognitive impairment, physical impairment, or mental health limitations.
Results: After multivariate adjustment for covariates, higher physical activity levels at midlife, as measured by metabolic-equivalent tasks, were significantly associated with better odds of successful survival. Significant increases in successful survival were observed beginning at the third quintile of activity: odds ratios (ORs) (95% confidence intervals [CIs]) in the lowest to highest quintiles were 1 [Reference], 0.98 (0.80-1.20), 1.37 (1.13-1.65), 1.34 (1.11-1.61), and 1.99 (1.66-2.38) (P < .001 for trend). Increasing energy expenditure from walking was associated with a similar elevation in odds of successful survival: the ORs (95% CIs) of successful survival across quintiles of walking were 1 [Reference], 0.99 (0.80-1.21), 1.19 (0.97-1.45), 1.50 (1.24-1.82), and 1.47 (1.22-1.79) (P < .001 for trend).
Conclusion: These data provide evidence that higher levels of midlife physical activity are associated with exceptional health status among women who survive to older ages and corroborate the potential role of physical activity in improving overall health.
Conflict of interest statement
None of the authors had any financial or personal conflict of interest to disclose.
Figures
Comment in
-
Evidence regarding the benefits of physical exercise.Arch Intern Med. 2010 Jan 25;170(2):124-5. doi: 10.1001/archinternmed.2009.491. Arch Intern Med. 2010. PMID: 20101006 Free PMC article. No abstract available.
-
Higher physical activity during middle age is associated with increased odds of survival without cognitive or physical impairments in older women.Evid Based Nurs. 2010 Jul;13(3):85-6. doi: 10.1136/ebn1063. Evid Based Nurs. 2010. PMID: 20584834 No abstract available.
-
A possible epigenetic explanation for the relationship between physical activity and exceptional health among older women.Arch Intern Med. 2010 Jun 28;170(12):1087. doi: 10.1001/archinternmed.2010.192. Arch Intern Med. 2010. PMID: 20585082 No abstract available.
-
Physical activity at midlife and health-related quality of life in older men.Arch Intern Med. 2010 Jul 12;170(13):1171-2. doi: 10.1001/archinternmed.2010.187. Arch Intern Med. 2010. PMID: 20625028 No abstract available.
-
Midlife physical activity affects successful aging in women.Clin J Sport Med. 2011 Jan;21(1):71-2. doi: 10.1097/01.jsm.0000393476.50545.b1. Clin J Sport Med. 2011. PMID: 21200175 No abstract available.
References
-
- National Center for Health Statistics. Health, United States, 2007 with Chartbook on Trends in the Health of Americans. Hyattsville, MD: 2007. - PubMed
-
- He W, Sengupta M, Velkoff VA, DeBarros KA. 65+ in the United States: 2005. Washington DC: U.S. Census Bureau; 2005.
-
- Newman AB, Arnold AM, Naydeck BL, et al. “Successful aging”: effect of subclinical cardiovascular disease. Arch Intern Med. 2003;163:2315–22. - PubMed
-
- Willcox BJ, He Q, Chen R, et al. Midlife risk factors and healthy survival in men. Jama. 2006;296:2343–50. - PubMed