日本生理人類学会誌
Online ISSN : 2432-0986
Print ISSN : 1342-3215
健常男性における温浴中の心血行動態および自立神経機能の変化に関する検討
平松 伸一丸山 徹加治 良一金谷 庄蔵藤野 武彦高杉 紳一郎仁保 喜之
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1999 年 4 巻 3 号 p. 133-140

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The present study was conducted to investigate the cardiovascular and autonomic responses caused by bathing with different three temperatures (i.e., 29, 35 and 40℃) in six healthy male volunteers under the continuous ECG monitoring, serial echocardiographic examination, blood pressure measurement and venous blood sampling. As a result, hydraulic effects of bathing caused an increase in the left ventricular end-diastolic volume probably based on augmented venous return. With respect to the thermal effects, high temperature (i.e., 40℃) bathing caused increased cardiac workload (i.e., increased heart rate and double product), vasodilatation (i.e., decreased total peripheral vascular resistance) and sympathetic acceleration evaluated by plasma catecholamine and spectral analysis of heat rate variability. Various temperature-dependent neurohumoral factors are considered to underlie the cardiovascular as well as autonomic responses. In conclusion, optimal bathing temperature has to be determined to prevent the sudden cardiac death in bathing.

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© 1999 日本生理人類学会
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