Electromyography methods were employed to examine the mechanisms underlying changes in the functional state of the contralateral neuromotor apparatus of rat gastrocnemius muscle during unilateral limitation of the hind leg motor function. Elimination of one hind leg from the total pattern of motor activity affected the state of contralateral neuromotor… (More)
The effects of unilateral crushing of the sciatic nerve on the spinal motor center of the contralateral gastrocnemius muscle were studied in rats. At 1, 5, and 10 days after nerve injury, the state of the center of the contralateral gastrocnemius muscle was assessed by paired-pulse monosynaptic testing and evaluation of the post-tetanic potentiation of its… (More)
Effects of unilateral damage of the rat sciatic nerve on the spinal motor centre of contralateral gastrocnemius muscle were investigated. The state of contralateral gastrocnemius muscle centre was assessed using the method of paired monosynaptic testings and posttetanic potentiation of reflex response on days 1, 5 and 10 after nerve damage. The obtained… (More)
The effect of endolumbar dimephosphon perfusion in dogs with spinal cord contusion was studied by means of transcranial magnetic stimulation and stimulation electromyography. Treatment with dimephosphon contributed to preservation of conduction function of the spinal cord and decrease in excitability of spinal motoneurons in the perifocal zone.
Models of excitatory tonic protective reflex revealed different reflex responses of skeletal muscles to stimulation of somatic or visceral afferents. The correlation of inhibitory and excitatory responses was found for dogs and rats. The observed phenomena are considered as the development of V. N. Tchernigovsky's idea of interoceptors influences upon… (More)
The change of reflex motoneuron excitability of sacral spinal cord segments was investigated by method of monosynaptic testing in acute experiments on spinal dogs. The H- and M-responses of square plantar muscle were recorded. The presence of H1- and H2-components of monosynaptic nature was revealed in this muscle. Chemical irritation of abdominal viscera… (More)