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Circadian rhythm abnormalities of wrist activity of institutionalized dependent elderly persons with dementia
Author(s)Yutaka Motohashi, Akira Maeda, Hideki Wakamatsu
Journal titleJournals of Gerontology: Series A, Biological Sciences and Medical Sciences, vol 55A, no 12, December 2000
Pagespp M740-M743
KeywordsSleep disorders ; Sleep behaviour ; Body temperature ; Dementia ; Japan.
AnnotationContinuous monitoring of wrist activity rhythm has been considered useful for evaluating abnormalities of the sleep-wake rhythm in people with dementia. The authors studied 82 older people with dementia in a nursing home over 7 days using this method. Abnormalities in 47 (57.3%) in the sample were classified into four categories: severely impaired circadian rhythm type with no boundary between day and night; free-running rhythm type; decreased circadian amplitude type; and and accentuation of ultradian rhythm type. This four-category classification provides a scientific approach to studying the mechanism of circadian activity rhythm abnormalities of older people with dementia. (RH).
Accession NumberCPA-010307202 A
ClassmarkCTS: CG: BKM: EA: 7DT

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