The influence of physical activity and sedentary behavior on living to age 85 years without disease and disability in older women

Eileen Rillamas-Sun, Michael J. Lamonte, Kelly R. Evenson, Cynthia A. Thomson, Shirley A. Beresford, Mathilda C. Coday, Todd M. Manini, Wenjun Li, Andrea Z. Lacroix

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Background Whether physical activity (PA) and sedentary behavior influence the odds of women living to age 85 years without chronic disease or disability is not well described. Methods Participants of the Women's Health Initiative (n = 49,612) were categorized based on health status by age 85 years: (i) lived without developing major chronic disease or mobility disability ("healthy"); (ii) lived and developed mobility disability with or without disease; (iii) lived and developed major chronic disease, but not mobility disability; and (iv) died before their 85th birth year. Multinomial logistic regression models that adjusted for covariates such as age, race/ethnicity, and body size estimated associations of self-reported PA and sitting time on developing major disease or mobility disability or dying before age 85 relative to being healthy. Results Mean ± SD baseline age was 70.2 ± 3.6 years. Distributions were: 22% healthy, 23% had mobility disability, 26% had major disease, and 29% died. Relative to those with high total PA, the adjusted odds ratios (OR) (confidence intervals [CI]) for mobility disability was 1.6 (1.4-1.7), 1.2 (1.1-1.3), and 1.1 (1.0-1.2) for women with no, low, and moderate total PA, respectively (p-trend <.001). The corresponding covariate-adjusted OR (CI) for mortality was 1.7 (1.5-1.8), 1.2 (1.1-1.3), and 1.0 (1.0-1.1) (p-trend <.001). Total PA was not associated with developing chronic disease before age 85 years. Sitting ≥10 relative to <5 hours per day increased the odds of mobility disability (1.1, CI: 1.0-1.3) and mortality (1.2, CI: 1.0-1.3) prior to age 85 years (p <.001). Conclusions Increasing PA to recommended levels and reducing sitting time are modifiable behaviors that may improve healthy aging in older women.

Original languageEnglish (US)
Pages (from-to)1525-1531
Number of pages7
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume73
Issue number11
DOIs
StatePublished - Oct 8 2018

Keywords

  • Exercise
  • Late-age survival
  • Mobility disability
  • Mortality
  • Sitting time

ASJC Scopus subject areas

  • Aging
  • Geriatrics and Gerontology

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