Physical activity and quality of life in severely obese individuals seeking bariatric surgery or lifestyle intervention
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Physical activity and quality of life in severely obese individuals seeking bariatric surgery or lifestyle intervention Dale S Bond1*, Jessica L Unick1, John M Jakicic2, Sivamainthan Vithiananthan3, Jennifer Trautvetter1, Kevin CO’Leary1 and Rena R Wing1
Abstract Background: Given that bariatric surgery (BS) and lifestyle intervention (LI) represent two vastly different approaches to treating severe obesity, there is growing interest in whether individuals who seek BS versus LI also differ on weight-related behaviors. In the present study, we compared BS- and LI-seekers on physical activity (PA) and sedentary behaviors (SB), and examined between-group differences in health-related quality of life (HRQoL), while controlling for PA. Findings: A sample of 34 LI-seekers were matched with 34 BS-seekers on gender, age, BMI, and PA monitor-daily wear time (age: 42.1±10.0 years; BMI: 45.6±6.5 kg/m2). PA and SB were assessed over a 7-day period via the SenseWear Armband (SWA). HRQoL was measured using the SF-36, with scores standardized to a population normal distribution (M=50, SD=10). Participants wore the SWA for 13.7±1.6 h/day. BS-seekers did not differ from LI-seekers on average min/d over the wear period spent in SB (641±117.1 vs. 638.4±133.4, p=0.62) or light (136.4±76.1 vs. 145.5±72.5, p=0.59) and moderate-to-vigorous (>1-min bouts=36.4±26.2 vs. 40.2±31.3, p=0.59; ≥10-min bouts=5.7±8.3 vs. 10.2±17.0, p=0.17) PA. BS-seekers reported significantly lower SF-36 physical functioning (42.4±10.9 vs. 49.0±6.8, p=0.004) and physical component summary (43.9±10.1 vs. 48.9±7.0) scores versus LI-seekers. BS-seeker group status was related to lower physical functioning (β=0.30, p=0.009), independent of gender, age, BMI, and daily PA. Conclusions: Findings suggest that seeking BS versus LI is not related to patterns of PA or SB, and that lower subjective physical functioning is not associated with lower overall PA levels in BS-seekers. Keywords: Bariatric surgery, Lifestyle intervention, Physical activity, Sedentary, Health-related quality of life, Sensewear armband
Introduction Two options for treating severe obesity are bariatric surgery and lifestyle intervention. To achieve weight loss, bariatric surgery procedures force modification of eating behavior and alter appetite regulation via surgical restriction of food intake, inducing nutrient malabsorption, and producing favorable changes in gut peptides/hormones [1]. Conversely, the goal of lifestyle intervention, a more conservative approach, is to promote voluntary * Correspondence: [email protected] 1 Department of Psychiatry and Human Behavior, The Miriam Hospital/Weight Control and Diabetes Research Center, Warren Alpert Medical School of Brown University, 196 Richmond Street, Providence, RI 02903, USA Full list of author information is available at the end of the article
modification of eating and physical activity behaviors to lose weight [2]. Given that bariatric surgery and lifestyle intervention are substantially different approaches to w
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