Effect of exercise training on respiratory reactions when breathing 5 percent carbon di oxide and 14 percent oxygen gas mixtures
Krasnikov, N.P.
Kosmicheskaia Biologiia i Aviakosmicheskaia Meditsina 15(4): 33-35
1981
ISSN/ISBN: 0321-5040
Accession: 005237740
Effect of a hypoxic-hypercapnic gas mixture (5% CO2 + 14% O2) on exercising men was studied. At a low work load, inhalation of this gas mixture inhibited gas exchange, and after a 10-mo. training, stimulated it. Increase in physical endurance was followed by an increase in human resistance to O2 deficiency and CO2 excess in the breathing mixture.