Abstract
Background
Bariatric surgery candidates spend very little time in moderate-to-vigorous intensity physical activity (≥3 metabolic equivalents [METs]). This study examined (1) how much of their remaining time is spent in sedentary behaviors (SB < 1.5 METs) compared to light-intensity activities (1.5–2.9 METs) and (2) whether sedentary time varies by BMI.
Methods
Daily time (hours, %) spent in SB was examined in 42 surgery candidates (BMI = 49.5 ± 7.9 kg/m2) using the SenseWear Pro2 Armband. Participants were stratified by BMI to assess the relationship between degree of obesity and SB.
Results
Participants wore the armband for 5.4 ± 0.7 days and 13.3 ± 1.7 h/day. On average, 81.4% (10.9 ± 2.1 h/day) of this time was spent in SB. Participants with BMI ≥ 50 spent nearly an hour more per day in SB than those with BMI 35–49.9 (p = 0.01).
Conclusions
Bariatric surgery candidates spend over 80% of their time in SB. Reducing SB may help to increase physical activity in these patients.
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Acknowledgments
This research was funded by grants from The Warren Alpert Medical School of Brown University’s Center of Excellence in Women’s Health and the National Institute of Diabetes and Digestive and Kidney Diseases (grant K01 DK083438-01) awarded to Drs. Wing and Bond, respectively. Processing and analysis of SWA data was possible through a grant (NIDDK P30 DK042404) awarded to Dr. Jakicic and the University of Pittsburgh Obesity and Nutrition Research Center (ONRC). Appreciation is expressed to Jennifer Trautvetter, B.A., Angelica Adams, B.S., and Caitlin Egan, M.S. for their assistance with data collection.
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Bond, D.S., Unick, J.L., Jakicic, J.M. et al. Objective Assessment of Time Spent Being Sedentary in Bariatric Surgery Candidates. OBES SURG 21, 811–814 (2011). https://doi.org/10.1007/s11695-010-0151-x
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DOI: https://doi.org/10.1007/s11695-010-0151-x