[The short-term effect of measured normobaric hypoxia on autonomic nervous system function in persons with hypo- and hyperacidic syndromes].

The functional activity of the vegetative nervous system was studied before and after the exposure to graded normobaric hypoxia having been realized as breathing with an artificial hypoxic mixture (AHM) during 10 to 40 minutes in subjects presenting with hypo- and hyperacidic syndromes. A relationship was established between activation of the sympathetic or parasympathetic regions and aggravation of the antecedent history (bad habits). It is suggested that a short-term AHM breathing be used as a test for preservation/failure of mechanisms of adaptation.