Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, The Miriam Hospital/Weight Control and Diabetes Research Center, Providence, Rhode Island 02903, USA.
Surg Obes Relat Dis. 2010 Jan-Feb;6(1):72-8. doi: 10.1016/j.soard.2009.08.012. Epub 2009 Sep 10.
Physical activity (PA) is an important component of weight loss programs and should be encouraged for severely obese patients undergoing bariatric surgery. However, few studies have determined the amount and intensity of activities undertaken preoperatively by bariatric surgery patients using objective measures.
Using RT3 tri-axial accelerometers, the present study compared 38 bariatric surgery candidates and 20 normal weight controls on activity counts/hr; the number of minutes daily spent in moderate-to-vigorous intensity PA (MVPA) and vigorous intensity PA; and the level of compliance with national recommendations to accumulate 150 min/wk of MVPA in bouts of > or = 10 minutes.
Surgery candidates, compared with controls, recorded significantly (P <.01) fewer activity counts/hr (13,799 +/- 3758 counts/hr versus 19,462 +/- 4259 counts/hr) and spent fewer minutes per day engaged in MVPA (26.4 +/- 23.0 min/d versus 52.4 +/- 24.7 min/d) and vigorous PA (1.2 +/- 3.4 min/d vs 11.8 +/- 9.0 min/d). More than two thirds (68%) of the surgery candidates versus 13% of the normal weight controls did not accumulate any MVPA in bouts of > or = 10 minutes and only 4.5% of obese patients met the weekly MVPA recommendation versus 40% of the controls.
The results of our study have shown that bariatric surgery candidates have low PA levels and rarely engage in PA bouts of sufficient duration and intensity to maintain and improve health. Additional research is needed to determine how best to increase PA in bariatric surgery candidates.
身体活动（PA）是减肥计划的重要组成部分，应鼓励接受减重手术的重度肥胖患者进行身体活动。然而，很少有研究使用客观测量方法来确定接受减重手术患者术前的活动量和强度。
本研究使用 RT3 三轴加速度计，比较了 38 名减重手术候选者和 20 名正常体重对照者的活动计数/小时；每天进行中到高强度体力活动（MVPA）和高强度体力活动的分钟数；以及遵守国家建议，每天积累 150 分钟/周的 MVPA （持续时间大于等于 10 分钟）的依从水平。
与对照组相比，手术候选者记录的活动计数/小时显著减少（P<.01）（13799 +/- 3758 计数/小时对 19462 +/- 4259 计数/小时），每天进行 MVPA 的时间也较少（26.4 +/- 23.0 分钟/天对 52.4 +/- 24.7 分钟/天）和高强度 PA（1.2 +/- 3.4 分钟/天对 11.8 +/- 9.0 分钟/天）。超过三分之二（68%）的手术候选者没有积累任何持续时间大于等于 10 分钟的 MVPA，而只有 4.5%的肥胖患者达到每周 MVPA 建议值，而对照组为 40%。
本研究结果表明，减重手术候选者的 PA 水平较低，很少进行足够持续时间和强度的 PA 活动来维持和改善健康。需要进一步研究以确定如何最好地增加减重手术候选者的 PA。
