Intervening on spontaneous physical activity to prevent weight regain in older adults: Design of a randomized, clinical trial

被引:4
|
作者
Nicklas, Barbara J. [1 ]
Gaukstern, Jill E. [3 ]
Legault, Claudine [2 ]
Leng, Iris [2 ]
Rejeski, W. Jack [3 ]
机构
[1] Wake Forest Sch Med, J Paul Sticht Ctr Aging, Dept Internal Med, Sect Gerontol & Geriatr Med, Winston Salem, NC 27157 USA
[2] Wake Forest Sch Med, Dept Biostat Sci, Winston Salem, NC 27157 USA
[3] Wake Forest Univ, Dept Hlth & Exercise Sci, Winston Salem, NC 27106 USA
关键词
Obesity; Weight loss maintenance; Self-monitoring; Self-regulation; Physical activity; RESTING METABOLIC-RATE; ENERGY-EXPENDITURE; AMERICAN-COLLEGE; LOSS MAINTENANCE; KENZ LIFECORDER; OBESE WOMEN; EXERCISE; RESTRICTION; OVERWEIGHT; ACCELEROMETERS;
D O I
10.1016/j.cct.2011.11.019
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
There is a need to identify evidenced-based obesity treatments that are effective in maintaining lost weight. Weight loss results in reductions in energy expenditure, including spontaneous physical activity (SPA) which is defined as energy expenditure resulting primarily from unstructured mobility-related activities that occur during daily life. To date, there is little research, especially randomized, controlled trials, testing strategies that can be adopted and sustained to prevent declines in SPA that occur with weight loss. Self-monitoring is a successful behavioral strategy to facilitate behavior change, so a provocative question is whether monitoring SPA-related energy expenditure would override these reductions in SPA, and slow weight regain. This study is a randomized trial in older, obese men and women designed to test the hypothesis that adding a self-regulatory intervention (SRI), focused around self-monitoring of SPA, to a weight loss intervention will result in less weight and fat mass regain following weight loss than a comparable intervention that lacks this self-regulatory behavioral strategy. Participants (n = 72) are randomized to a 5-month weight loss intervention with or without the addition of a behavioral component that includes an innovative approach to promoting increased SPA. Both groups then transition to self-selected diet and exercise behavior for a 5-month follow-up. Throughout the 10-month period, the SRI group is provided with an intervention designed to promote a SPA level that is equal to or greater than each individual's baseline SPA level, allowing us to isolate the effects of the SPA self-regulatory intervention component on weight and fat mass regain. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码:450 / 455
页数:6
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