[The mechanism of skeletal musculature contraction induced by pulses of a high-intensity magnetic field].

Acute experiments on nembutal-anesthetized cats (50 mg/kg) were employed to investigate the effect of 1 T pulsating magnetic field (PMF) on neuromuscular system of the leg. Special techniques (tubocurarine administration, PMF exposure of the isolated nerve before and after cold blockade, immersion of the isolated nerve into the media with different surface area and electrical conductance) furnished evidence on muscular contractions resultant exclusively from stimulation of the motor fiber. The generation of the potential effect was recorded under the conditions of the nerve trunk contact with a conducting medium with surface area sufficient for appearance of the threshold potential difference in its periphery.