It was demonstrated that a 3-day pressure chamber training may increase the maximum tolerable "altitude" at rest from 8,600-8,900 m (depending on the onset rate of hypoxia) to 9,600 m. After pressure chamber training the maximum tolerable "altitude" increased from 8,200 m to 9,200 m, when exercising in a bicycle ergometer at 200 kgm/min and continuously ascending at a rate of 20 m/sec. A similar antihypoxic effect was also provided by a 7-day high altitude adaptation. Using polarographic measurements of oxygen tension in the skin, it was found that adaptation to hypoxia induced a more pronounced oxygen decrease at high altitudes. This can be attributed to a more distinct blood redistribution, i. e., a better blood supply to the vital organs at the expense of peripheral tissues.

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polarographic measurements of oxygen tension redistribution tolerable altitude pressure chamber oxygen decrease

A Iu, Katkov R N, Chabdarova N V, Pravetski? S A, Vtory? V V, Lenski?,.[Comparative evaluation of pressure chamber training and high altitude adaptation to hypoxia in humans].. 16 (1),74-7.

A Iu, Katkov R N, Chabdarova N V, Pravetski? S A, Vtory? V V, Lenski?,"[Comparative evaluation of pressure chamber training and high altitude adaptation to hypoxia in humans]." 16

A Iu, Katkov R N, Chabdarova N V, Pravetski? S A, Vtory? V V, Lenski?,"[Comparative evaluation of pressure chamber training and high altitude adaptation to hypoxia in humans]."