[Effects of short-term oxygen breathing on the human respiratory system].

Compared were effects of cryogenic and adsorptive oxygen on the respiration system in an experiment with 8 normal female volunteers. Mechanic impedance of the respiratory tract, pulmonary ventilation function, CO transport coefficient and physical performance were determined before and after 20 minutes of oxygen breathing. Breathing two types of oxygen was found to have different effects on the real part of mechanic impedance and the ventilatory function of the lung.