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Changes in body temperature, circulatory function, and thermal comfort during and after bathing : Effect of room temperature

山口県立大学学術情報 Volume 9 Page 9-17
published_at 2016-03-31
02.nursing_YAMAZAKI.pdf
[fulltext] 1.77 MB
Title
入浴に伴う体温、循環機能および温熱性快適感の変化 : 室温の影響
Changes in body temperature, circulatory function, and thermal comfort during and after bathing : Effect of room temperature
Creators Yamazaki Fumio
Source Identifiers
Creator Keywords
血圧 深部体温 心拍出量 快適感 温冷感 blood pressure core temperature cardiac output thermal comfort thermal sensation
入浴中は湯温に依存して生体に温熱負荷がかかる上に静水圧の影響によっても循環動態が大きく変化する。さらに冬季における浴室温の低下は入浴関連事故を引き起こす原因になり得る。しかし入浴時の室温が生理心理機能に及ぼす影響については不明な点が少なくない。そこで本研究では、若年男性を対象として湯温40℃での15分間の入浴時の体温、循環および心理的パラメーターの変化に及ぼす室温(10、20、および30℃)の影響を検討した。その結果、食道温は入浴により10℃条件では上昇しなかったが(0.0±0.2℃)、20℃条件では0.3±0.2℃、30℃条件では0.7±0.1℃、それぞれ上昇した。入浴前の血圧と総末梢血管抵抗は室温が低いほど高かった。血圧はいずれの室温条件においても入浴中に変化しなかったが、30℃条件での入浴直後には一過性に低下する傾向がみられた。30℃条件での入浴中の心拍出量は他の室温条件でのそれらよりも有意に高かった。温冷感は入浴に伴う皮膚温の変化に依存して変化した。快適感は入浴により10℃条件では増加し、30℃条件では減少し、20℃条件では変化しなかった。これらのことより入浴時の心血管系や温熱性不快感は浴室の温熱条件に強く影響されることが明らかとなった。四季を通じて安全で快適な入浴ができるように浴室温を適切に管理することが望ましいと考えられた。
Bathing induces a marked hemodynamic change due to the effects of external hydrostatic pressure in addition to the thermal load depending on the water temperature. Furthermore, a lower bathroom temperature in the winter season can potentially cause a bathing-related incident. However, information regarding the influence of the bathroom temperature on the psychophysiological function during bathing is limited. In the present study, therefore, we examined the influence of the bathroom temperature(10, 20, and 30℃)on the changes in body temperature,as well as circulatory and psychological parameters during 15-min bathing at a 40℃ water temperature in young male adults. The esophageal temperature
remained unchanged during bathing under the 10℃ condition(0.0±0.2℃), but it increased by 0.3±0.2℃ under the 20℃ condition and by 0.7±0.1℃ under the 30℃ condition. The blood pressure and total peripheral vascular resistance before bathing increased depending on the bathroom temperature. The blood pressure remained unchanged during bathing under all temperature conditions, but it tended to decrease transiently just after bathing under the 30℃ condition. The cardiac output during bathing under the 30℃ condition was significantly higher than under the other temperature conditions. The thermal sensation changed depending on changes of the skin temperature on bathing. Thermal comfort increased on bathing under the 10℃ condition and decreased under the 30℃ condition,but did not change under the 20℃ condition. These results show that the cardiovascular system and thermal discomfort during bathing were markedly affected by the thermal conditions of a bathroom. To take a bath safely and comfortably in all seasons, it is desirable to appropriately manage the bathroom temperature.
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口県立大学
Date Issued 2016-03-31
File Version Version of Record
Access Rights open access
Relations
[ISSN]2189-4825