On the increased night urine flow and water balance under helium-oxygen high pressure.

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In all of the saturation simulation dive that was given at Japan Marine Science and Technology Center, the Urine flow of the divers under hyperbaric exposure was increased. The results on the urine flow measurement In detail show that the increase of urine flow under hyperbaric conditions occurred especialy at night. The 300m saturation simulation dive cord-name "Seadragon-VI" was carried out from September to October in 1984. On this project, we examined the relationship bitween the water intake and the water loss of the divers. The results obtained are as follows : 1. A diver showed significant increase of the night urine flow have had much water intake, little urine flow before going to bed and also little insensible water loss with sweat during sleep. And the capacity of the bladder takes part in the frequency of night urine as well. 2. The water intake under 300m was less than the value of the surface.
日本生理人類学会の論文