1] Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark [2] Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.
Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.
Int J Obes (Lond). 2014 Jan;38(1):32-9. doi: 10.1038/ijo.2013.147. Epub 2013 Aug 8.
Lack of sleep and increased consumption of energy-dense foods and sugar-sweetened beverages (SSBs) have all been suggested as factors contributing to the increased prevalence of overweight and obesity.
To evaluate whether objectively measured sleep duration (average and day-to-day variability) as well as parent-reported sleep problems are independently associated with proposed dietary risk factors for overweight and obesity in 8-11-year-old children.
In this cross-sectional study, data on sleep duration and day-to-day variability in sleep duration were measured in 676 Danish, apparently healthy children by an objective measure (actigraphy) for 8 nights, and the Children's Sleep Habits Questionnaire (CSHQ) was filled out by the parents. Diet was recorded using a web-based food record for 7 consecutive days. Fasting blood samples were obtained for measurements of plasma leptin and ghrelin levels.
Sleep duration (h per night) was negatively associated with energy density (ED) of the diet (β = -0.32 kJ g(-1)), added sugar (β = -1.50 E%) and SSBs (β = -1.07 E%) (all P ≤ 0.003). Furthermore, variability in sleep duration (10-min per night) was positively associated with SSBs (β = 0.20 E%, P = 0.03), independent of sleep duration, and CSHQ score was positively associated with ED (β = 0.16 kJ g(-1), P = 0.04). All of these associations were independent of potential confounders (age, sex, pubertal status, height, weight, screen time, moderate-to-vigorous physical activity and parental education and ethnicity).
Our study suggests that short sleep duration, high sleep duration variability and experiencing sleep problems are all associated with a poor, obesity-promoting diet in children.
睡眠不足以及能量密集型食物和含糖饮料（SSB）摄入量的增加，均被认为是导致超重和肥胖患病率上升的因素。
评估 8-11 岁儿童的客观测量睡眠时间（平均和日常变化）以及父母报告的睡眠问题是否与超重和肥胖的潜在饮食风险因素独立相关。
在这项横断面研究中，通过客观测量（活动记录仪）对 676 名丹麦、看似健康的儿童进行了 8 晚的睡眠时间和日常睡眠时间变化的数据测量，并由父母填写了《儿童睡眠习惯问卷》（CSHQ）。通过 7 天的在线食物记录来记录饮食情况。采集空腹血样以测量血浆瘦素和胃饥饿素水平。
睡眠时间（每晚小时数）与饮食的能量密度（ED）呈负相关（β=-0.32 kJ g(-1)），与添加糖（β=-1.50% E）和 SSB（β=-1.07% E）呈负相关（均 P ≤ 0.003）。此外，睡眠时间的变化（每晚 10 分钟）与 SSB 呈正相关（β=0.20% E，P=0.03），与睡眠时间和 CSHQ 评分独立相关，而 ED 与 CSHQ 评分呈正相关（β=0.16 kJ g(-1)，P=0.04）。所有这些关联均不受潜在混杂因素（年龄、性别、青春期状态、身高、体重、屏幕时间、中等到剧烈体力活动以及父母的教育和种族）的影响。
我们的研究表明，睡眠时间短、睡眠时间变化大以及睡眠问题与儿童不良的、促进肥胖的饮食有关。
