title: Use of an infrared sensor system to take long-term bedside measurements of rest-activity patterns in the elderly with dementia.
abstract: In order to study long-term rest-activity patterns of elderly residents in care facilities, an infrared sensor system was developed. This sensor system detects a resident's presence or absence from their bed and their activity with little inconvenience. Using this system, the rest-activity patterns of two elderly people with dementia was assessed over a period of 3 months. For both subjects, frequent activity peaks and absences from their beds were often observed during the night. Such a sensor system will be useful for evaluating the sleep-wake rhythms of people with sleep disorders.
authors.affiliation: Home Appliance R & D Center, Matsushita Electric Works Ltd, Osaka, Japan. toshio@peg.mew.co.jp
authors.forename: Toshio
authors.initials: T
authors.lastname: Nakano
authors.forename: Emi
authors.initials: E
authors.lastname: Koyama
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Nakamura
authors.forename: Takeo
authors.initials: T
authors.lastname: Ito
authors.forename: Koji
authors.initials: K
authors.lastname: Tamura
authors.forename: Masaaki
authors.initials: M
authors.lastname: Yaginuma
mesh_terms: D000204:Activity Cycles / Q000502:physiology*; D000368:Aged; D000369:Aged, 80 and over; D003704:Dementia / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007259:Infrared Rays; D008134:Long-Term Care; D008297:Male; D019095:Point-of-Care Systems; D012146:Rest / Q000502:physiology*