[Human work capacity at high altitudes].
Healthy male test subjects (students), aged 18 to 24, dwelling in lowlands ascended a mountain of 3200 m without preliminary training. At high altitude they went in for gymnastics and sorts games for 1--2 hours a day and made regular ascents, reaching an altitude of 4000 m. This was designated a pulsating regimen of adaptation. Phasic changes in the maximum physical performance were noted during a short-term exposure to high altitudes (3200 m): during the first decade it declined by 12--13% and by the 41--42 day the performance increased by 25%. During the readaptation period the performance remained for 2 months higher by 28--35% than the pretest values. The pulsating regimen of adaptation to highlands can be used to increase physical performance of the human body during and after the exposure to high altitudes.