[Several mechanisms of adaptation to combined action of weak varying magnetic fields and hypokinesia].

The nervous and humoral mechanisms of an adaptation to the combined effect of hypokinesia and varying magnetic fields of the 8 Hz frequency and 5 Ts induction have been studied in the experiments performed on 2330 white inbred male rats characterized by the moderate motor activity and low emotional excitability determined on the basis of the "open field" test. It is found that under these conditions the stress reaction to reduced motor activity is not developed. There have been revealed some mechanisms of the combined effect of hypokinesia and weak varying magnetic fields: increased CNS inhibition processes, decreased anxiety level, modulated hypothalamic functional activity, epinephrine accumulation in the red blood cells, synchronization of diuresis with the processes of urinary excretion of epinephrine and norepinephrine, elevated epinephrine excretion.