Befort C A, Stewart E E, Smith B K, Gibson C A, Sullivan D K, Donnelly J E
Department of Preventive Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA.
Int J Obes (Lond). 2008 Mar;32(3):519-26. doi: 10.1038/sj.ijo.0803769. Epub 2007 Dec 4.
To examine weight loss maintenance among previous participants of a university-based behavioral weight management program and to compare behavioral strategies and perceived barriers between successful and unsuccessful maintainers.
Previous program participants (n=179) completed mailed surveys assessing current weight, weight control behaviors and perceived barriers to weight loss maintenance.
At 14.1+/-10.8 months following completion of treatment, survey respondents were on average 12.6+/-12.6 kg, or 11.3+/-10.7%, below baseline weight; 76.5% of respondents had successfully maintained weight, defined as maintaining a weight loss of at least 5% below baseline. Compared to unsuccessful maintainers, successful maintainers reported practicing four dietary and three physical activity weight control strategies more often and experiencing five barriers to healthy eating and exercise less often. After accounting for time since treatment and maximum weight loss while in treatment, the strongest correlates of successful weight loss maintenance were frequent exercise and perceived difficulty of weight management.
Clinically meaningful weight loss maintenance was achieved by the majority of participants. Findings support the literature indicating that physical activity is one of the strongest predictors of successful weight loss maintenance. Findings also suggest that strategies to reduce the level of perceived effort required for long-term weight control may improve maintenance outcomes.
研究参加过大学行为体重管理项目的人员的体重减轻维持情况，并比较成功维持者与未成功维持者之间的行为策略和感知障碍。
以前的项目参与者（n = 179）完成邮寄的调查问卷，评估当前体重、体重控制行为以及体重减轻维持的感知障碍。
在完成治疗后的14.1±10.8个月，调查对象的体重平均比基线体重低12.6±12.6千克，即低11.3±10.7%；76.5%的调查对象成功维持了体重，定义为维持比基线体重低至少5%的体重减轻。与未成功维持者相比，成功维持者报告更频繁地采用四种饮食和三种身体活动体重控制策略，且较少经历健康饮食和锻炼的五种障碍。在考虑治疗后的时间和治疗期间的最大体重减轻后，成功维持体重减轻的最强相关因素是经常锻炼和感知到的体重管理难度。
大多数参与者实现了具有临床意义的体重减轻维持情况。研究结果支持文献表明身体活动是成功维持体重减轻的最强预测因素之一。研究结果还表明，降低长期体重控制所需的感知努力水平的策略可能会改善维持结果。
