Sleeping Habits Predict the Magnitude of Fat Loss in Adults Exposed to Moderate Caloric Restriction
Sleeping Habits Predict the Magnitude of Fat Loss in Adults Exposed to Moderate Caloric Restriction
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DOI：
10.1159/000342054
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发表时间：
2012-09-01
期刊：
影响因子：
3.6
通讯作者：
Tremblay, Angelo
中科院分区：
文献类型：
--
作者：
Chaput, Jean-Philippe;Tremblay, Angelo
目的：验证基线睡眠数量和质量是否可以预测适度热量限制的成年人的脂肪减少程度。方法：共有 123 名超重和肥胖男性和女性（年龄，41.1 +/- 6.0 岁；BMI，33.2 +/- 3.6 kg/m(2)（平均值 +/- SD））接受了减肥干预措施，包括在营养师的监督下每天减少 600-700 kcal 的能量摄入。干预的时间长度在 15 至 24 周之间。在基线和减肥计划结束时评估身体脂肪量（双能 X 射线吸收测定法）、睡眠质量（匹兹堡睡眠质量指数总分）和睡眠持续时间（小时/夜，根据匹兹堡睡眠质量指数自我报告）。结果：饮食干预期间的平均体重减轻为 4.5 +/- 3.9 公斤，其中 76% 来自脂肪储存。使用多元线性回归分析，在调整年龄、性别、基线 BMI、干预时间和总能量摄入变化后，我们观察到睡眠持续时间和体脂减少之间存在显着的正相关关系，无论是绝对值（调整后 β = 0.72 kg/h；p < 0.05）还是相对值（调整后 β = 0.77%/h；p < 0.01）。此外，我们观察到基线时更好的睡眠质量与更大的脂肪量减少有关。结论：这项研究提供的证据表明，睡眠习惯可以影响减肥干预的成功，当人们决定开始节食时应该考虑到这一点。版权所有 (c) 2012 S. Karger GmbH，弗莱堡
Objective: To verify whether sleep quantity and quality at baseline predict the magnitude of fat loss in adults subjected to moderate caloric restriction. Methods: A total of 123 overweight and obese men and women (age, 41.1 +/- 6.0 years; BMI, 33.2 +/- 3.6 kg/m(2) (mean +/- SD)) underwent a weight loss intervention consisting of a targeted 600-700 kcal/day decrease in energy intake supervised by a dietician. The length of the intervention varied between 15 and 24 weeks. Body fat mass (dual-energy X-ray absorptiometry), sleep quality (total Pittsburgh Sleep Quality Index score) and sleep duration (h/night, self-reported from the Pittsburgh Sleep Quality Index) were assessed at both baseline and at the end of the weight loss program. Results: The mean weight loss over the dietary intervention was 4.5 +/- 3.9 kg, 76% of which came from fat stores. Using a multiple linear regression analysis, we observed a significant positive relationship between sleep duration and the loss of body fat, both in absolute (adjusted beta = 0.72 kg/h; p < 0.05) as well as in relative terms (adjusted beta = 0.77%/h; p < 0.01), after adjusting for age, sex, baseline BMI, length of the intervention, and change in total energy intake. Furthermore, we observed that a better sleep quality at baseline was associated with greater fat mass loss. Conclusion: This study provides evidence that sleeping habits can influence the success of a weight loss intervention and should be taken into consideration when one decides to start a diet. Copyright (c) 2012 S. Karger GmbH, Freiburg