Abstract
The variation of the type of peripheral vasomotor reflex was observed by plethysmograph after deep breathing and exposure to the wind at Mt. Norikura. The plethysmograms obtained were divided into four types, and those were daily observed, taking up the variation by the combination of those types as a mark of stereotype. The values of variation were remarkably large in the early period of mountain residence, at the station of 2,720 meters above the sea level on Mt. Norikura.
Blood pres s ure was higher on the mountain than on the level ground, and the difference between the maximum and the minimum blood pressure was considerably large in the early period of residence. When the variation of excreted volume of 17-Ketosteroid was large, that of stereotype was large, and when the former was small, the latter was small too. In other words, the large excreted volume of 17-Kethosteroid showed the large variation of stereotype.
Blood pressure was more influenced by mete o rological conditions on the mountain than on the level ground.
