The effect of a cold environment on sleep and thermoregulation with insufficient bedding assuming an emergency evacuation
The effect of a cold environment on sleep and thermoregulation with insufficient bedding assuming an emergency evacuation
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假设紧急疏散，床上用品不足，寒冷环境对睡眠和体温调节的影响
DOI：
10.1016/j.enbuild.2019.109562
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发表时间：
2020
影响因子：
6.7
通讯作者：
VanyaDraganova
中科院分区：
文献类型：
--
作者：
Kazuyo Tsuzuki;Yosuke Mochizuki;Kazuki Maeda;Yuki Nabeshima;Teruhisa Ohata;VanyaDraganova
本研究旨在探讨寒冷环境对使用救灾毯（blanket）和普通蒲团（Futon）的冬季睡眠、体温调节反应和主观感觉的影响。毯子和Futon的热绝缘分别为1.3 clo和3.1clo，事先用热人体模型测量。就寝前体育馆平均气温为5.9℃，拂晓时平均气温为3.6℃。通过活动记录仪测量的睡眠效率指数，与使用被褥（94%）相比，使用被褥的第一晚显著下降（85%）。被褥与被褥的平均小气候温度分别为21.4℃和23.5℃。使用毯子睡觉时的平均皮肤温度（32°C）明显低于使用蒲团睡觉时的平均皮肤温度（32.8°C）。然而，在直肠温度和心率方面，毯子和蒲团之间没有发现显著差异。睡眠后，被试使用毯子时，全身和上半身感觉明显比使用蒲团时更冷。在低温环境中使用不充分的被褥（如救灾毯）睡觉，通过降低远端和背部的皮肤温度，可以显著降低平均皮肤温度。特别是在紧急撤离的第一个晚上，很明显，即使是健康的年轻人，在低温环境中睡眠也受到干扰。
The aim of this study is to investigate the effects of a cold environment on sleep, thermoregulatory responses, and subjective sensations during sleep in winter using disaster relief blankets (Blankets) and ordinary futons (Futon). The clo insulations of Blankets and Futon were 1.3 clo and 3.1clo respectively, measured using a thermal manikin in advance. The average air temperature in the gymnasium before going to bed was 5.9°C, while at dawn it was 3.6°C. The sleep efficiency index, which was measured by actigraphy, decreased significantly in the first night when using Blankets (85%) compared to Futon (94%). The average microclimate temperature between the human body and the bedding was 21.4°C for Blankets and 23.5°C for Futon. The mean skin temperature was significantly lower for sleeping times using Blankets (32°C) than when using Futon (32.8°C). However, no significant differences in rectal temperature and heart rate were found between the Blankets and Futon. After sleep, the participants felt significantly colder for whole body and upper body when using Blankets than Futon. Sleeping in a low temperature environment using insufficient bedding such as a disaster blanket significantly lowers the mean skin temperature by decreasing skin temperature at the distal end and back. Especially, regarding the first night of an emergency evacuation, it became clear that even in healthy young men, sleep was disturbed in low temperature environments.