[Acid-base equilibrium, blood lactic acid and pyruvic acid in albino rats after muscular exertion under conditions of normal oxygen, hypoxia and hypoxia-hypercapnia].

Albino rats of the Wistar family were subjected at three subsequent equal trials of muscular work: the first in normoxyc conditions; the second in hypoxic normobaric conditions; the third in hypoxic-hypercapnic normobaric conditions. The modifications of the lactacidemia, pyruvicemia and acid-base balance were greatest at the end of hypoxic trial. Added CO2 (2%) sensitively reduced the acidificant effects of the muscular work on the acid-base balance.