[Changes in the basic indices of human hemodynamics in lower body compression using an anti-G suit].

Changes in cardiovascular parameters of test subjects wearing anti-G suits were studied under static conditions. The study was carried out, using methods of radioactive label dilution, radiocardiography and tetrapolar rheography. The study demonstrated the highest level of physiological reactions within short transition periods after inflation and deflation of suit bladders.

[Several hemodynamic indices during human breathing of oxygen under excess pressure].

The paper gives the experimental findings on the pattern and value of circulation changes in ten test subjects exposed to oxygen breathing at positive pressure of 20 mm Hg. The major parameters of central circulation were registered by the method of radioactive label (I131) dilution. During the exposure the test subjects showed an average 27% decrease in the cardiac output as compared with the control level.