海水温浴および動水温浴が体温変動に及ぼす影響

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本研究は，海水および動水が温水浴時の体温調節反応に及ばす影響を検討することを主たる目的とした。被験者は健康な成人男性6名であり，その平均の年齢，身長，体重および体脂肪率はそれぞれ33．3±2．6歳，168．8±6．3cm，69．6±11．9kgおよび16．3±4．5％であった。実験は，水温38．5℃に設定された「海水・動水」「海水・静水」「真水・動水」「真水・静水」の4条件下で20分間の入浴後，30分間の回復をとった。直腸温は，全条件とも入浴直後から一過性に上昇傾向を示し，出浴10分では潜熱現象を示したが，出浴20分からはゆるやかな下降傾向を示した。有意に直腸温を上昇させる結果を示したのは海水条件だった。平均皮膚温は，全条件とも入浴直後から一過性に上昇傾向を示し，出浴10分以内に急速に下降傾向を示し，その後はゆるやかな低下を示した。平均体温は，全条件とも入浴直後から一過性に上昇傾向を，また出浴直後には急速に下降傾向を示し，その後はゆるやかな低下を示した。他条件と比較して有意差が認められたのは，海水と動水を組み合わせた条件「海水・動水」であった。以上のように一般（真水）の温浴時と比較した場合に，直腸温を有意に上昇させるのは海水温浴，また平均体温を有意に上昇させるのは海水温浴と動水温浴の併用であった。The purpose of the present study was to compare thermal responses of the body when bathing in four different conditions ; (1) warm sea water with flow, (2) warm sea water, (3) warm fresh water with flow, (4) warm fresh water. The thermal responses were based on the examination of taking rectal, skin, and mean body temperatures at each 0, 10, 20, minutes in bathing and each 10, 20, 30 minutes in recovery on land. Six healthy men were the subjects in this experiment, and they were in average 33.3±2.6 in age, 168.8±6.3cms in height, 69.6±11.9kgs in weight, and 16.3±4.5% in body fat. The subjects bathed in warm water for 20 minutes and took recovery on land for 30 minutes respectively. The experiment was tested under water temperature at 38.5℃ during bathing. The rectal temperature increased during bathing and decreased gradually during recovery on land. Bathing in sea water with flow showed statistically significant increases of rectal temperature for the certain periods of time compared with bathing in warm fresh water and fresh water with flow. The mean skin temperature showed a continuous increase during bathing and showed a rapid decrease during the 10 minutes in recovery on land, and a gradual decrease after then. No statistically significant differences were detected in the mean skin temperature among four conditions. The mean body temperature also showed a continuous increase during bathing and showed a rapid decrease during the 10 minutes in recovery on land, and a gradual decrease after then. In bathing in sea water with flow, the mean body temperature statistically showed significant increases during bathing after 10 minutes and during recovery on land compared with bathing in warm fresh water and fresh water with flow. Bathing in warm sea water with flow showed the highest in all examined temperatures (rectal, skin and mean body temperature) followed by warm sea water, warm fresh water with flow and just warm fresh water.
上越教育大学の論文

海水温浴および動水温浴が体温変動に及ぼす影響

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