Ohnaka T, Tochihara Y, Kanda K
Department of Physiological Hygiene, Institute of Public Health, Tokyo, Japan.
Appl Human Sci. 1995 Mar;14(2):89-93. doi: 10.2114/ahs.14.89.
The frequency of body movement in the elderly and young people during sleep was measured in order to investigate the effect of hot thermal environments on sleep in summer. Simultaneously, room temperature and humidity were also measured. In the morning after measuring body movements, the subjects completed a questionnaire about their night's sleep. The results obtained were as follows: 1) The time of going to bed and rising in the elderly was significantly earlier than the young. 2) The elderly had a tendency to judge their sleep as "good", however, there were no significant differences between the two groups. 3) The room temperature for the elderly during sleep ranged from 25 to 28 degrees C (mean 26.5 degrees C). On the other hand, it was between 20 and 30 degrees C (mean 27.1 degrees C) in the young, which was significantly higher than that of the elderly. 4) Body movement in the elderly during sleep was significantly greater than those in the young. 5) A significant relation between body movement and room temperature was found within each group. Under conditions of less than 28 degrees C of room temperature, there were significantly higher rates of body movement in the elderly.
为了研究夏季炎热环境对睡眠的影响，测量了老年人和年轻人睡眠期间身体运动的频率。同时，还测量了室温与湿度。在测量身体运动后的早晨，受试者完成了一份关于其夜间睡眠的问卷。获得的结果如下：1）老年人上床睡觉和起床的时间明显早于年轻人。2）老年人倾向于将自己的睡眠判断为“良好”，然而，两组之间没有显著差异。3）老年人睡眠期间的室温范围为25至28摄氏度（平均26.5摄氏度）。另一方面，年轻人的室温在20至30摄氏度之间（平均27.1摄氏度），明显高于老年人。4）老年人睡眠期间的身体运动明显多于年轻人。5）在每组中都发现身体运动与室温之间存在显著关系。在室温低于28摄氏度的条件下，老年人身体运动的发生率明显更高。
