Effect of the sciatic nerve blockade on the function of the contralateral motor center in the rat gastrocnemius muscle

When the rat spinal motor centre was activated by fixing the animal in a supine posture, the motor units of intact gastrocnemius muscle fired more frequently in the high-frequency range. Under conditions of the ischiatic nerve blockade, a shift to an increase in the background firing frequency of th...

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Bibliographic Details
Published in:	Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova Vol. 85; no. 11; p. 1415
Main Authors:	Pleshchinskiĭ, I N, Babynina, T V, Egorova, L I, Eremeev, A A
Format:	Journal Article
Language:	Russian
Published:	Russia (Federation) 01-11-1999
Subjects:	Animals Electrophysiology Motor Neurons - physiology Movement - physiology Muscle Denervation Muscle, Skeletal - innervation Muscle, Skeletal - physiology Rats Sciatic Nerve - physiology
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Summary:	When the rat spinal motor centre was activated by fixing the animal in a supine posture, the motor units of intact gastrocnemius muscle fired more frequently in the high-frequency range. Under conditions of the ischiatic nerve blockade, a shift to an increase in the background firing frequency of the motor units related to intact gastrocnemius muscle seems to be related to increased motoneurone excitability occurring because of the contralateral denervation.
ISSN:	0869-8139