Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
Sleep. 2013 Jun 1;36(6):827-34. doi: 10.5665/sleep.2704.
To examine the relationship between sleep and dietary intake in adolescents using an experimental sleep restriction protocol.
Randomized crossover sleep restriction-extension paradigm.
Sleep obtained and monitored at home, diet measured during an office visit.
Forty-one typically developing adolescents age 14-16 years.
The 3-week protocol consisting of a baseline week designed to stabilize the circadian rhythm, followed randomly by 5 consecutive nights of sleep restriction (6.5 hours in bed Monday-Friday) versus healthy sleep duration (10 hours in bed), a 2-night washout period, and a 5-night crossover period.
Sleep was monitored via actigraphy and teens completed validated 24-hour diet recall interviews following each experimental condition.
Paired-sample t-tests examined differences between conditions for consumption of key macronutrients and choices from dietary categories. Compared with the healthy sleep condition, sleep-restricted adolescents' diets were characterized by higher glycemic index and glycemic load and a trend toward more calories and carbohydrates, with no differences in fat or protein consumption. Exploratory analyses revealed the consumption of significantly more desserts and sweets during sleep restriction than healthy sleep.
Chronic sleep restriction during adolescence appears to cause increased consumption of foods with a high glycemic index, particularly desserts/sweets. The chronic sleep restriction common in adolescence may cause changes in dietary behaviors that increase risk of obesity and associated morbidity.
通过实验性睡眠限制方案研究青少年睡眠与饮食摄入之间的关系。
随机交叉睡眠限制-延长范式。
在家中获得和监测睡眠，在办公室就诊期间测量饮食。
41 名年龄在 14-16 岁的典型青少年。
该 3 周方案包括旨在稳定昼夜节律的基线周，随后随机进行 5 个连续的睡眠限制夜（周一至周五在床上 6.5 小时）与健康睡眠时间（床上 10 小时），2 个夜间洗脱期和 5 个夜间交叉期。
通过活动记录仪监测睡眠，青少年在每个实验条件后完成经过验证的 24 小时饮食回忆访谈。
配对样本 t 检验检查了条件之间关键宏量营养素消耗和饮食类别选择的差异。与健康睡眠条件相比，睡眠受限青少年的饮食特点是血糖指数和血糖负荷更高，热量和碳水化合物摄入量呈上升趋势，但脂肪和蛋白质摄入量无差异。探索性分析显示，睡眠限制期间摄入的甜点和甜食明显多于健康睡眠。
青少年时期慢性睡眠限制似乎会导致高血糖指数食物的摄入量增加，尤其是甜点/甜食。青少年时期常见的慢性睡眠限制可能会导致饮食行为发生变化，从而增加肥胖和相关发病率的风险。
