[Depolarization of primary afferents of the lumbosacral division of the spinal cord during real locomotion].

Changes of polarization of central afferent terminals during evoked locomotion of mesencephalic cats were studied in lumbar spinal cord. Significant part of primary afferent depolarization was shown to be evoked by afferent impulsation; intensity of such impulsation increased during limb flexion and decreased during extension.