Abstract
No studies, to my knowledge, have examined the joint effects of physical activity and sedentary behavior on health-related quality of life (HRQOL), which was the purpose of this study. Data from the 2003–2006 National Health and Nutrition Examination Survey (NHANES) were used (N = 5,536). Moderate-to-vigorous physical activity (MVPA) and sedentary behavior were assessed using an ActiGraph 7164 accelerometer, with HRQOL assessed using the Centers for Disease Control and Prevention 4-item HRQOL index. MVPA (βadjusted = − 0.01; 95% CI: − 0.01 to − 0.004; P < 0.001), but not sedentary behavior (βadjusted = − 0.0003; 95% CI: − 0.001–0.0001; P = 0.37), was associated with HRQOL. MVPA was associated with HRQOL among those above the median (≥ 487.5 min/day) level of sedentary behavior (βadjusted = − 0.02; 95% CI: − 0.03 to − 0.01; P = 0.006; N = 2769). The results of this brief report do not demonstrate that sedentary behavior, independent of MVPA, is associated with HRQOL. The independent association of MVPA on HRQOL confirms previous work that used self-report measures of MVPA.
Highlights
Emerging research suggests that sedentary behavior is associated with poor cardiometabolic health outcomes, independent of participation in moderate-to-vigorous physical activity (MVPA) (de Rezende et al, 2014)
In a recent study employing an objective measure of MVPA and sedentary behavior, Schmid et al (Schmid et al, 2015) demonstrated independent associations of sedentary behavior and MVPA with mortality, but sedentary behavior was not associated with mortality among those engaging in greater levels of MVPA, which is in alignment with a recent meta-analysis (Biswas et al, 2015)
Sedentary behavior was not associated with health-related quality of life (HRQOL) among those below the median MVPA. The results of this brief report do not demonstrate that sedentary behavior, independent of MVPA, is associated with HRQOL
Summary
Emerging research suggests that sedentary behavior is associated with poor cardiometabolic health outcomes, independent of participation in moderate-to-vigorous physical activity (MVPA) (de Rezende et al, 2014). Studies have examined and demonstrated a favorable association between self-reported MVPA and health-related quality of life (HRQOL) (Klavestrand and Vingard, 2009; Heath and Brown, 2009; Bize et al, 2007; Freelove-Charton et al, 2007; Kekkonen et al, 2007; Kruger et al, 2007; Mukamal et al, 2006; Pierce et al, 2006; Abell et al, 2005; Smith and McFall, 2005), examination of any potential joint effects of objectively-measured sedentary behavior and MVPA on HRQOL has yet to be explored, which was the purpose of this brief. HRQOL is conceptualized as an individual's perceived physical and mental health
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