| Project/Area Number |
12672353
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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 |
Clinical nursing
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| Research Institution | KYOTO PREFECTURAL UNIVERSITY OF MEDICINE, COLLEGE OF MEDICAL TECHNOLOGY |
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Principal Investigator |
OKAYAMA Yasuko KYOTO PREFECTURAL UNIVERSITY OF MEDICINE, COLLEGE OF MEDICAL TECHNOLOGY, PROFESSOR, 教授 (50150850)
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| Co-Investigator(Kenkyū-buntansha) |
KOMATSU Mitsuyo KYOTO PREFE CTURAL UNIVERSITY OF MEDICINE, COLLEGE OF MEDICAL TECHNOLOGY, INSTRUCTOR, 助手 (20290223)
KIMURA Misaka KYOTO PREFECTURAL UNIVERSITY OF MEDICINE, COLLEGE OF MEDICAL TECHNOLOGY, PROFESSOR, 教授 (90150573)
MOMIMOTO Taketoshi KOBE WOMEN'S COLLEGE, PRESIDENT, 学長 (30079694)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥3,000,000 (Direct Cost: ¥3,000,000)
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| Keywords | WATER METABOLISM / THIRST RATINGS / HEAT ACCLIMATION / 水分出納 / 飲水行動 |
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| Research Abstract |
In order to investigate water supplementation methods effective for the prevention of dehydration and heat stroke in the elderly, the water metabolism and thirst ratings of healthy elderly were studied before and after exposure to heat. This study was carried out over 2 years
Nine elderly males and 4 young control subjects participated in the acclimation study. In the elderly group, the total water intake increased by about 9.5%, and the total urine volume decreased by about 6%. Similar to the results seen in elderly subjects, the total water intake in the young control subjects increased by 2% after acclimation, but the decrease in the urine volume(18%) after acclimation was greater than that in the elderly group. Subjective thirst ratings after sweating with exercise-heat exposure increased after heat acclimation in both groups, but the increment of the rating was greater in the young control subjects (p<0.05).
In the present study the elderly appeared to adapt to heat by increasing their fluid intake. However, the water loss due to perspiration and the thirst ratings after heat acclimation were lower in the elderly than in the young subjects, suggesting a slower water turnover in elderly people. Therefore, it is considered necessary to encourage the elderly to develop a deliberate habit of water intake.
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