| Project/Area Number |
14570319
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Public health/Health science
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
KOBAYASHI Riko Health administration center, lecturer, 保健管理センター, 講師 (90281823)
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| Co-Investigator(Kenkyū-buntansha) |
FUKUDA Noriko College of medical technology, assistant professor, 医療技術短期大学部, 助教授 (20173354)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2003: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2002: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | midlife women / sleep problems / polyaomnography / bright light |
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| Research Abstract |
The purpose of this study is to investigate the quality of sleep and sleep problems of the midlife working woman using the Pittsburgh Sleep Quality Index (PSQI). 300 women participated in the investigation (39-63 years old). They were divided into four groups every 5 years old. In the group of 50 or more years old with menopausal symptoms, many had the problems of sleep and the women of the group of 50 to 54 years old were especially serious.
Subsequently, for 11 women (52.5±3.9 years old) who had some sleep problems or mild climacteric complaints assessed by Kpperman index whom consent was got among investigation participants, bright hght(5000 lx) exposure of 1 hour was performed in the evening for 1week. Time in bed, sleep period time and total sleep time increased in the bright light (BL) condition. The latency to the deep sleep shortened and REM sleep percentage also showed a significant increase in the BL condition. The visual analogue scale (VAS) ratings scores showed increased alertness and lower fatigue in the evening and higher motivation in the morning in the BL condition. No characteristic change was observed in the sleep-wake rhythm. These findings suggest that evening bright light exposure is effective for midlife women, improving nighttime sleep quality and day time feeling without change in the sleep-wake rhythm.
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