Tamura T, Miyasako S, Ogawa M, Togawa T, Fujimoto T
Institute for Medical and Dental Engineering, Tokyo Medical and Dental University, Chiyoda, Japan.
Med Eng Phys. 1999 Jan;21(1):1-8. doi: 10.1016/s1350-4533(99)00020-x.
This study was designed to assess changes in bed temperature as an index of body movement. Changes in the temperature of the bed or mattress were used to estimate motility and number of awakenings, and total time in bed. Simultaneous temperature records, video image recordings and actigraphic data were obtained from 12 young adults for three consecutive nights. Significant agreement of time in bed and body movement among the three measurements was found. Intra-individual variability was low for time in bed. In a second study, 10 healthy elderly subjects used a temperature monitor at home for four consecutive nights. The time in bed was 8.1 h, a little longer than for the younger adults, but not markedly different. These studies show the potential usefulness of bed temperature monitoring as an index of sleep behaviour. Although the precise sleep index could not be observed, behaviour could be evaluated simply.
本研究旨在评估作为身体活动指标的床温变化。通过床或床垫温度的变化来估计活动能力、觉醒次数及卧床总时长。连续三晚从12名年轻成年人处获取了同步的温度记录、视频图像记录和活动记录仪数据。发现这三种测量方法在卧床时间和身体活动方面具有显著一致性。卧床时间的个体内变异性较低。在第二项研究中，10名健康的老年受试者在家连续四晚使用了温度监测仪。卧床时间为8.1小时，比年轻人略长，但差异不明显。这些研究表明，监测床温作为睡眠行为指标具有潜在的实用性。虽然无法观察到精确的睡眠指标，但可以简单地评估行为。
