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An activity monitor study on the sleep-wake rhythm of healthy aged people residing in their homes
Article first published online: 17 MAR 2008
DOI: 10.1111/j.1440-1819.1998.tb01060.x
1440-1819/asset/cover.gif?v=1&s=e407a578c8266a741ea384e4c046641d8fbe6d94 "Psychiatry and Clinical Neurosciences")
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How to Cite
SAKURAI, N. and SASAKI, M. (1998), An activity monitor study on the sleep-wake rhythm of healthy aged people residing in their homes. Psychiatry and Clinical Neurosciences, 52: 253–255. doi: 10.1111/j.1440-1819.1998.tb01060.x
Publication History
- Issue published online: 17 MAR 2008
- Article first published online: 17 MAR 2008
- Abstract
- References
- Cited By
Keywords:
- aging;
- sleep-wake rhythm;
- wrist actigraph
Abstract The aim of this preliminary study was to investigate sleep-wake rhythm in active, healthy elderly people residing in their usual habitat. The subjects were thirty-five male volunteers within an age range of 65–95 for 3–4 days. We measured the sleep-wake rhythm of the subjects with an Actillume® which is a combined wrist activity monitor and illumination recorder. Analysis of the Actillume® recording showed that 24 of the 35 subjects (69%) kept continuous activity indicating good maintenance of wakefulness with high light exposure. The mean mesor of sleep-wake rhythm, however, significantly decreased in the older subjects (aged 80–95; n= 15).