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Physical Activity & Incidence of CHD & CVD in Women

JAMA Netw Open; ePub 2019 Mar 15; LaCroix, et al

In a prospective cohort study of older women, all daily life physical activity (PA) was determined to have a role in the prevention of coronary heart disease (CHD) and cardiovascular disease (CVD). Data from accelerometers were worn for a required 7 days and used to measure light PA. Light PA was also analyzed as a continuous variable with and without adjustment for moderate to vigorous PA (MVPA). Researchers found:

  • Among 5,861 women (mean age 78.5 years), 143 CHD events and 570 CVD events were observed.
  • The highest quartile of light PA was associated with a 42% reduced risk of myocardial infarction or coronary death and a 22% reduced risk of incident CVD events vs the lowest quartile.
  • These reduced risks persisted after adjustment for sociodemographic, behavioral, and health status variables, as well as MVPA.

Citation:

LaCroix AZ, Bellettiere J, Rillamas-Sun E, et al. Association of light physical activity measured by accelerometry and incidence of coronary heart disease and cardiovascular disease in older women. JAMA Netw Open. 2019;2(3):e190419. doi:10.1001/jamanetworkopen.2019.0419.

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