The construction of the intervention model based on biological rhythm for elderly people – focused on the light environment

2014 Fiscal Year Final Research Report

• Project/Area Number: 25670994
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Gerontological nursing
• Research Institution: Kyoto University
• Principal Investigator: WAKAMURA Tomoko 京都大学, 医学(系)研究科(研究院), 教授 (40240452)
• Co-Investigator(Kenkyū-buntansha): IBURI Seiko 滋賀県立大学, 看護学部, 教授 (80335843) ; YAMAGUCHI Yoko 梅花女子大学, 看護学部, 教授 (50381918) ; NIN Kazuko 京都大学, 大学院医学研究科, 教授 (40243084)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 生体リズム / 光 / 睡眠 / 自殺対策

Outline of Final Research Achievements

The purpose of this study was to compare, between summer and winter, the sleep, mood and biological rhythm of the elderly people who lived in the area that the daylight hours have a short in winter. Fifty seven males and 92 females as participants (average age: 72.7 [SD: ± 7.1] years old, ranged in 56-89 years old). In summer, their get-up time became earlier, and their sleep duration was shortened due to that. Their sleep efficiency was deteriorated because of the heat of the bedroom. On the other hand, their frequency to talk with person was decreased in winter, and the duration when they stayed outdoors was shortened. The quality of the sleep was possible to be deteriorated in winter for the caregivers for old people and for the persons with mental disease.

Free Research Field

看護学