[Effects of isolated and combined effects of a constant magnetic field and antiorthostatic hypokinesia on central hemodynamics in rats].

The effect of a constant magnetic field on central circulation of rats was investigated during their exposure to antiorthostatic hypokinesia. Circulation parameters were measured by impedance rheoplethysmography. It was found that 3-hour exposure to a 0.4 T magnetic field did not produce a significant effect on central circulation, whereas exposure to hypokinesia caused substantial changes which included decreases of heart rate, stroke volume and cardiac output. During a combined exposure to a constant magnetic field and antiorthostatic hypokinesia, the magnetic field exerted a beneficial effect on central circulation.