[Dynamic control of the atmospheric parameters of spacecraft].

On the basis of experimental data a mathematical model of relationships between physiological parameters, oxygen content in the atmosphere and exercises has been developed. Using the model, it has been demonstrated that circulation and respiration reactions to exercises can be optimized by increasing the partial pressure of oxygen as related to the exercise level. A probable law of the dynamic and physiologically optimal control of the oxygen content in the space cabin atmosphere has been advanced. In cases of an uncontrolled decrease of PO2 the oxygen supply of crewmembers can be optimized by the dynamic control of the ambient CO2 content.