Combined Effects of Sedentary Behavior and Moderate-to-Vigorous Physical Activity on Cardiovascular Health in Older, Community-Dwelling Latinos

in Journal of Aging and Physical Activity
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This study examined the combined effects of sedentary behavior and moderate-to-vigorous physical activity (MVPA) on cardiovascular health in older Latinos. In a cross-sectional sample of 147 older, community-dwelling Latinos, time spent in sedentary behavior and MVPA were obtained using accelerometers. Analyses examined the effects of a measure of physical activity that combined levels of sedentary behavior (± 10 daily hours) and MVPA (< 30, 30–150, or > 150 weekly minutes) on cardiovascular health outcomes (blood pressure, BMI, waist circumference, cardiorespiratory fitness). Results suggest that cardiovascular health benefits of MVPA on BMI (p = .005), waist circumference (p = .002), and cardiorespiratory fitness (p = .012) may depend on a participant’s level of sedentary behavior. For all three, health benefits of 30–150 weekly minutes of MVPA were found only for those without excessive sedentary behavior (≥ 10 hr). Sedentary behavior may negatively impact cardiovascular health despite moderate participation in MVPA. Health guidelines should suggest reducing sedentary behavior while increasing MVPA.

Halloway, Wilbur, Schoeny, and Semanik are with Rush University College of Nursing, Chicago, IL. Marquez is with the Department of Kinesiology and Nutrition, Center for Research on Health and Aging, University of Illinois at Chicago, Chicago, IL.

Address author correspondence to Shannon Halloway at Shannon_Halloway@rush.edu.