Psychosocial factors related to physical activity and weight loss in overweight women
Psychosocial factors related to physical activity and weight loss in overweight women
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DOI：
10.1249/01.mss.0000218137.25970.c6
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发表时间：
2006-05-01
期刊：
影响因子：
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通讯作者：
Marcus, Bess H.
中科院分区：
文献类型：
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作者：
Gallagher, Kara I.;Jakicic, John M.;Marcus, Bess H.
目的：本研究调查了超重、久坐的女性是否会受到为期6个月的行为减肥计划的影响，这些心理社会因素与体力活动有关。此外，还有。这些心理社会因素在减肥干预后的减肥水平和自我报告的体力活动水平上进行了检查。方法：对165名超重(BMI=32.7±4.2 kg·m~(-2))女性(年龄=37.6±5.5岁)进行综合行为减肥计划，包括行为教育、适度热量限制和渐进性家庭锻炼。分别在0个月和6个月时评估体重。在0个月和6个月时评估感知的益处和障碍、体力活动自我效能感和体力活动变化过程。在0个月和6个月时使用7天体力活动回忆量表评估体力活动(每周至少中等强度运动的分钟数)。结果：干预后体力活动自我效能感增加，行为过程发生改变。和几个认知过程的变化(P<；0.05)。体力活动的预期障碍有所减少(P<；0.05)。与那些体力活动水平较低、体重减轻较少的人相比，体重减轻10%的人报告了更高的身体活动自我效能感水平，更多地使用行为策略来获得社会支持，以及更少的身体活动障碍(P<；0.05)。报告运动水平较高的个人也报告了更高水平的身体活动自我效能感，更多地使用行为策略。与那些体力活动水平较低的人相比，体力活动的障碍更少(P<；0.05)。结论：在体重管理计划中针对自我效能、行为策略和障碍可能会改善体力活动，这可能会改善超重成年人的体重减轻。
Purpose: This study examined whether psychosocial factors related to physical activity in overweight, previously sedentary women were affected by a 6-month behavioral weight loss program. Inaddition. these psychosocial factors were examined across levels of weight loss and self-reported physical activity in response to a weight loss intervention. Methods: Data from 165 overweight (body mass index (BMI) = 32.7 +/- 4.2 kg(.)m(-2)) women (age = 37.6 +/- 5.5 yr) who participated in a comprehensive behavioral weight loss program that included behavioral education, moderate caloric restriction, and progressive home-based exercise were examined. Body weight was assessed at 0 and 6 months. Perceived benefits and barriers, physical activity self-efficacy, and physical activity processes of change were assessed at 0 and 6 months. Physical activity (minutes per week of at least moderate-intensity activity) was assessed using the 7-Day Physical Activity Recall at 0 and 6 months. Results: The intervention resulted in increases in physical activity self-efficacy, behavioral processes of change. and several cognitive processes of change (P < 0.05). There was a reduction in expected barriers for physical activity (P < 0.05). Individuals with 10% weight loss reported higher levels of physical activity self-efficacy, greater use of behavioral strategies to elicit social support, and fewer barriers to physical activity than those with lower levels of physical activity and less weight loss (P < 0.05). Individuals reporting higher levels of exercise also reported higher levels of physical activity self-efficacy, greater use of behavioral strategies. and fewer barriers to physical activity than those individuals with lower levels of physical activity (P < 0.05). Conclusion: Targeting self-efficacy, behavioral strategies, and barriers in weight management programs may improve physical activity, which may result in improved weight loss in overweight adults.