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睡眠不足影响儿童的饮食摄入量:随机交叉试验的纵向组成分析
Jillian J Haszard1, Rosie Jackson2, Silke Morrison2
1Biostatistics Centre, University of Otago, Dunedin, New Zealand.
概括
睡眠不足的孩子消耗更多的能量,特别是来自非核心食物,无论活动水平如何. 改善睡眠可以帮助孩子控制饮食和体重.
科学领域:
- 儿童营养学 儿童营养学
- 睡眠科学 睡眠科学
- 行为健康 行为健康
背景情况:
- 睡眠不足与儿童肥胖有关,但根本的机制尚未完全理解.
- 这项研究调查了睡眠时间如何影响儿童的饮食摄入量,考虑到身体活动和久坐行为.
研究的目的:
- 为了确定睡眠不足对儿童饮食摄入量的影响.
- 分析时间使用 (睡眠,体力活动,久坐时间) 的变化与饮食摄入的关系.
- 探索对睡眠操纵的反应中的潜在性别差异.
主要方法:
- 一个随机交叉试验,涉及105名8-12岁的健康儿童.
- 睡眠时间被操纵 (延长或限制) 每个一周,分隔一个洗期.
- 评估24小时时间使用行为和饮食摄入量,使用动图和饮食回忆,分析混合效应模型.
主要成果:
- 睡眠限制 (大约3小时) 睡眠时间减少48分钟) 导致能量摄入量增加 (262kJ),主要来自非核心食物.
- 增加的静坐时间与更高的非核心食物摄入量相关,而增加的中度至剧烈的体力活动 (MVPA) 与更高的核心食物摄入量相关.
- 在女性参与者中,饮食变化更为明显.
结论:
- 睡眠不足与增加的能量消耗独立相关,特别是来自非核心食物来源的能量消耗增加.
- 旨在改善睡眠时间的干预措施可能是改善儿童饮食习惯和体重管理的可行策略.
- 了解时间使用动态对于解决儿童与饮食有关的健康问题至关重要.
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