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- W2955147230 abstract "Reported Relationships: M.C. Nelson:Contracted Research (Only include research fundsreceived directly from industry; institution grants are NOT reportable.) If you are a PI, you must report a financial relationship even if those funds came to your institution; InBody USA. Regional body fat deposition, particularly visceral fat, may be an important mechanistic link between sedentary behavior and cardiometabolic disease risk with advancing age. PURPOSE: To examine the associations of sedentary behavior and screen time with total, visceral, and segmental body fat in middle to older aged adults. METHODS: 47 adults (mean±SD: age 53.5±11.2 y; body fat 30.5±10.6%; men 38.3%) self-reported sedentary behavior and moderate-to-vigorous physical activity (MVPA) using the Sedentary Behavior Questionnaire and International Physical Activity Questionnaire, respectively. Leisure screen time was defined as television viewing, video games and computer games. Total, visceral, and segmental body fat were estimated with the InBody770 bioelectrical impedance analyzer. Waist circumference was measured at the top of the iliac crest. Multiple regression assessed the associations of sedentary behavior and screen time with total and regional fat distribution, controlling for age, sex and MVPA. RESULTS: Average sedentary time was 7.5±2.3 h·d-1 with 1.3±0.9 h·d-1 reported as screen time. Sedentary time was associated with total fat mass (R2=0.19, β=0.33, p=0.02), visceral fat (R2=0.20, β=0.31, p=0.03), trunk fat (R2=0.17, β=0.36, p=0.01), waist circumference (R2=0.23, β=0.39, p<0.01) and leg fat (R2=0.24, β=0.30, p=0.03) independent of age and sex. When MVPA was added to the model total fat mass (R2=0.20, β=0.30, p=0.04), trunk fat (R2=0.17, β=0.34, p=0.03) and waist circumference (R2=0.25, β=0.36, p=0.01) remained significant. Screen time was associated with trunk fat (R2=0.13, β=0.30, p=0.04) and waist circumference (R2=0.23, β=0.38, p<0.01) independent of age and sex, with the association of trunk fat attenuated after accounting for MVPA. CONCLUSIONS: Our findings suggest self-reported sedentary behavior is independently associated with the accumulation of excess total body fat, visceral fat, and fat within the trunk and legs in middle to older-aged adults. However, the association between sedentary behavior and visceral fat is attenuated by MVPA, indicating MVPA may be important for preventing the accumulation of visceral fat. Our findings also suggest total sedentary behavior is more strongly associated with regional fat deposition than screen time in this sample." @default.
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- W2955147230 date "2019-06-01" @default.
- W2955147230 modified "2023-09-27" @default.
- W2955147230 title "Self-Reported Sedentary Behavior Is Associated With Total, Visceral, And Segmental Body Fat In Adults" @default.
- W2955147230 doi "https://doi.org/10.1249/01.mss.0000562117.33097.58" @default.
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