Predictors of weight gain in the Pound of Prevention study
Predictors of weight gain in the Pound of Prevention study
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DOI：
10.1038/sj.ijo.0801169
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发表时间：
2000-04-01
影响因子：
4.9
通讯作者：
Murray, DM
中科院分区：
文献类型：
--
作者：
Sherwood, NE;Jeffery, RW;Murray, DM
目的：本研究探讨了常量营养素摄入量之间的横向和前瞻性关系。旨在限制脂肪摄入、体力活动和体重的行为。设计：总体目标是确定预测和/或伴随体重随时间增加或减少的饮食和运动行为。所讨论的具体问题包括：(a) 饮食或运动的习惯水平是否可以预测体重变化； (b) 习惯饮食和运动水平与体重的横截面关系； (c) 饮食和运动的变化是否与体重随时间的变化有关？ 参与者：受试者是社区志愿者样本（n=826 名女性，n=218 名男性），他们在 3 年的时间内参加了体重增加预防项目。 测量：在研究期间每年测量基线体重。每年还对饮食和运动行为的自我报告测量进行测量。 结果：在男性和女性中，最一致的结果是膳食脂肪摄入量与体重增加之间呈正相关，而体力活动频率与体重增加之间呈负相关。体重较重的人比体重较轻的人吃得更多，运动量也更少。随着时间的推移，增加体力活动水平并减少食物摄入量的人与没有这样做的人相比，体重不会增加。高强度体力活动的频率对于男性和女性都尤为重要。此外，与运动量较少的女性相比，持续进行较高水平的中等体力活动的女性体重增加速度较慢。结论：总体结果表明，无论是横向还是前瞻性，体重和体重变化的决定因素是多因素的。注意锻炼、脂肪摄入和总能量摄入对于成功长期控制体重似乎都很重要。
OBJECTIVES: This study examined cross-sectional and prospective relationships between macronutrient intake. behaviors intended to limit fat intake, physical activity and body weight.DESIGN: The overall goal was to identify diet and exercise behaviors that predict and/or accompany weight gain or loss over time. Specific questions addressed included: (a) are habitual levels of diet or exercise predictive of weight change; (b) are habitual diet and exercise levels associated cross-sectionally with body weight; and (c) are changes in diet and exercise associated with changes in body weight over time?PARTICIPANTS: Subjects were a sample of community volunteers (n=826 women, n=218 men) taking part in a weight gain prevention project over a 3-year period.MEASURES: Body weight was measured at baseline and annually over the study period. Self-report measures of diet and exercise behavior were also measured annually.RESULTS: Among both men and women, the most consistent results were the positive association between dietary fat intake and weight gain and an inverse association between frequency of physical activity and weight gain. Individuals who weighed more both ate more and exercised less than those who weighed less. Individuals who increased their physical activity level and decreased their food intake over time were protected from weight gain compared to those who did not. Frequency of high-intensity physical activity was particularly important for both men and women. Additionally, women who consistently engaged in higher levels of moderate physical activity gained weight at a slower rate compared to women who were less active.CONCLUSIONS: Overall results indicated that both cross-sectionally and prospectively, the determinants of weight and weight change are multifactorial. Attention to exercise, fat intake and total energy intake all appear important for successful long term control of body weight.