HUMAN RESPIRATORY REACTIONS WHILE IN THE CYCLIC STAY IN NORMOBARIC HYPOXIC ENVIRONMENT

Abstract

Objective: to assess the human adaptive respiratory responses formed in during cyclic stay in artificial hypoxic gaseous environment with oxygen content in nitrogen of 17% (AHGE-17). Materials and methods: in 12 male, aged 25-52 in during cyclic stay in AHGE-17 (daily, for 2 hours, 15 sessions in total) was evaluated external respiratory function (ERF). Results: in response to stay in AHGE-17 the test subjects showed reduced activity of the respiratory system that manifested itself in reducing lung ventilation, gas exchange and respiratory efficiency. Further proceedings are accompanied by statistically significant reduction in the severity of these reactions; In addition, all surveyed also noted optimization of parameters of ERF in normal conditions. Conclusions: the identified human reactions of ERF in stay in AHGE-17 reflected the «transition» of cells and tissues to more economical mode of activity that allows the body to endure such hypoxic condition without express of oxygen transport mechanisms.

Keywords

• gas hypoxic mixture
• circulatory and respiratory physiological phenomena