Salt-concentration Dependent Responses of Thermoregulatory Functions by Total Body Bathing in Sea Water

Journal/Book: XXIe Congrès international de Thalassothérapie Hammamet (Tunisie) 30 janvier-2 février 2000 S. 21. 2000;

Abstract: Y. AGISHI T. SHIMIZU * Y. OHTSUKA TOKYO JAPAN Hokkaido University School of Medicine Joetsu University of Education* JAPAN In order to investigate the effects of the concentration of chemical components of the sea water on the thermoregulatory functions rectal skin and mean body temperatures were measured continuously before during total body bathing and during recovery period after bathing. Eight healthy young men were subjected in the experiment. Each subject bathed in the sea water or in tap water for 15 minutes in the long-sitting position at 38°C. Water bathing was conducted in individual subject with the concentration of the sea water salt at 0 1.0 1.35 and 7 % respectively. The rectal temperature increased during bathing and decreased gradually during recovery period. Statistically significant difference (p< 0.05) between 0 and 7 % of the concentration of the sea water was detected in the rectal temperature during bathing and recovery period. The mean skin temperature showed a continuous increase and a rapid decrease during 20 min. in recovery time and a gradual decrease after then. A significant different (p< 0.05) between 0 and 7 % of the concentration of the sea water was detected in the mean skin temperature during recovery period. Statistically significant difference (p< 0.01) between 0 and 7 % of the concentration of the sea water was observed in the mean body temperature during bathing and recovery period. Possible mechanism(s) of these phenomena will be discussed with regards to salt-complex characteristic ionic components in the sea water. wt

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