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首页> 外文期刊>Obesity surgery >Dynamic relations between sedentary behavior, physical activity, and body composition after bariatric surgery
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Dynamic relations between sedentary behavior, physical activity, and body composition after bariatric surgery

机译：减肥手术后久坐行为，体力活动和身体成分之间的动态关系

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Background Physical activity has been shown to increase following obesity surgery; however, changes in sedentary behavior in this setting are not known. Our aim was to describe changes in both physical activity and sedentary behavior of obese patients after gastric bypass (GBP) and their relationships with changes in body composition. Methods Physical activity, time spent watching TV as typical sedentary behavior (self-report), and body composition (DXA) were assessed before and 6 and 12 months after GBP in 86 obese patients (67 women, 24-66 years old, BMI 41.3-53.5 kg/m 2). Results One year after GBP (mean loss of weight -37.1 kg, fat mass -25.7 kg, lean body mass -9.4 kg), leisure-time physical activity (LTPA) significantly increased from 2.0 (SD 3.7) to 3.8 (5.4) h/week and from 7.2 (12.5) to 14.1 (20.1) MET-h/week (MET: metabolic equivalent task), the number of LTPA performed increased from 1.3 (1.3) to 1.8 (1.4), and TV time decreased from 3.0 (1.6) to 2.4 (1.4) h/day (all P.05). The ranking of the most frequently performed LTPA did not change. Positive associations were observed between the increase in lean body mass and (1) the increase in LTPA and (2) the decrease in TV watching. Inverse relationships were found for changes in fat mass. Conclusions Together with increased LTPA, this study shows a decrease in sedentary behavior after GBP, which appears related to favorable changes in body composition. These observations are important to design future intervention studies, including physical activity and sedentary occupations aiming to optimize the care of patients after bariatric surgery.
机译：背景研究表明，肥胖症手术后身体活动增加;但是，在这种情况下久坐行为的变化是未知的。我们的目的是描述肥胖患者绕过胃（GBP）后的身体活动和久坐行为的变化及其与身体组成变化的关系。方法对86名肥胖患者（67名女性，24-66岁，BMI 41.3）在GBP之前，6个月和12个月后的体力活动，花时间作为典型的久坐行为（自我报告）以及身体成分（DXA）进行了评估-53.5 kg / m 2）。结果GBP后一年（平均体重减轻-37.1千克，脂肪量-25.7千克，瘦体重-9.4千克），休闲时间的体育活动（LTPA）从2.0（SD 3.7）显着提高到3.8（5.4）h /周，从MET-h /周（7.2（12.5）提高到14.1（20.1））（MET：代谢当量任务），执行的LTPA数量从1.3（1.3）增加到1.8（1.4），电视时间从3.0（ 1.6）至2.4（1.4）h / day（所有P <.05）。最常执行的LTPA的排名没有变化。瘦体重的增加与（1）LTPA的增加与（2）电视观看的减少之间存在正相关。发现脂肪量的变化呈反比关系。结论LTPA升高与这项研究一起显示，GBP后久坐行为减少，这似乎与身体成分的有利变化有关。这些观察对于设计未来的干预研究非常重要，包括体育锻炼和久坐的职业，旨在优化减肥手术后对患者的护理。

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