Shi Z, McEvoy M, Luu J, Attia J
Research Center for Gender, Health and Ageing, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales, Australia.
Int J Obes (Lond). 2008 Dec;32(12):1835-40. doi: 10.1038/ijo.2008.191. Epub 2008 Nov 4.
Many recent studies have highlighted the complex interaction between sleep duration, food intake and metabolic balance. Although a causal link is yet to be established, emerging evidence suggests that short sleep duration may alter the balance between energy intake and energy expenditure. Thus far, most research has focussed on the link between sleep duration and carbohydrate metabolism. The role of sleep duration in fat intake and vice versa remains relatively unknown.
The aim of this analysis was to determine whether there exists a significant association between sleep duration and fat intake.
Data from 2828 adults living in Jiangsu province, China, collected during a national survey of nutrition and health conducted in 2002.
The analysis showed a statistically significant association between sleep duration and fat and carbohydrate intake but not protein or fasting blood glucose. Those who slept for less than 7 h a day had significantly higher (P=0.005) percentage of energy from fat intake than those who slept for 7-9 h per day. Analysis of the influence of high fat intake upon sleep demonstrated a trend to reduced sleep duration between the highest and lowest quartiles of fat intake (P=0.056).
To our knowledge, this is the first data from a large cross-sectional study to show an association between decreased sleep duration and increased fat intake in humans. Given the trend towards decreased sleep duration in modern societies and the parallel obesity epidemic, the significance of this association warrants more research.
近期许多研究强调了睡眠时间、食物摄入与代谢平衡之间的复杂相互作用。尽管因果关系尚未确立，但新出现的证据表明，短睡眠时间可能会改变能量摄入与能量消耗之间的平衡。到目前为止，大多数研究都集中在睡眠时间与碳水化合物代谢之间的联系上。睡眠时间在脂肪摄入中的作用以及反之脂肪摄入对睡眠时间的作用仍然相对未知。
本分析的目的是确定睡眠时间与脂肪摄入之间是否存在显著关联。
数据来自2002年在中国江苏省进行的一项全国营养与健康调查中收集的2828名成年人。
分析表明，睡眠时间与脂肪和碳水化合物摄入之间存在统计学上的显著关联，但与蛋白质或空腹血糖无关。每天睡眠时间少于7小时的人，其脂肪摄入能量占比显著高于每天睡眠时间为7 - 9小时的人（P = 0.005）。对高脂肪摄入对睡眠影响的分析表明，在脂肪摄入量最高和最低四分位数之间，睡眠时间有缩短的趋势（P = 0.056）。
据我们所知，这是来自一项大型横断面研究的首个数据，表明人类睡眠时间缩短与脂肪摄入增加之间存在关联。鉴于现代社会睡眠时间缩短的趋势以及同时出现的肥胖流行，这种关联的重要性值得更多研究。
