[Electrical activity of the motor units of the muscles in blood supply disorders of the latter].

Electrical activity of the motor units in the muscles (m. gastrocnemius and m. extensor hallucis brevis) in normal humans and in the patients with impaired peripheral circulation in the lower limbs was studied with the needle concentric electrodes. A reduction in the muscle action potentials under conditions of their circulation impairment was revealed; this pointed to the myogenic origin of alterations in the skeletal muscles due to the incompetence of their blood circulation.