[Characteristics of limb movementss, intensity of integral afferent impulse flow from limb receptors and level of polarization of primary afferent endings during locomotion of highly decerebrate cats].
Correlations between parameters of electrical muscle activity, changes of joint angles of the hindlimb, intensity of afferent inflow and dorsal root potential during real locomotion were studied in highly decerebrate cats. Characteristics of the hindlimb movements before and after deafferentation were described. It has been shown that during locomotion the afferent activity consisted of two components: tonic and periodic phase ones. In the latter one three principal waves can be distinguished, each inducing appropriate changes in primary afferent terminals polarization level. These changes in their turn, were summated with those elicited by central generator. Correlation dependences between parameters of the above mentioned processes were investigated. Mechanisms of afferent control of the locomotor generator function are discussed.
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D000200:Action Potentials; D000344:Afferent Pathways / Q000503:physiopathology; D000818:Animals; D002415:Cats; D003655:Decerebrate State / Q000503:physiopathology*; D005684:Gait; D005727:Ganglia, Spinal / Q000503:physiopathology; D006614:Hindlimb / Q000503:physiopathology; D008124:Locomotion; D009411:Nerve Endings / Q000503:physiopathology*; D011984:Sensory Receptor Cells / Q000503:physiopathology*; D013997:Time Factors
Kharakteristiki dvizheniĭ konechnosti, intensivnost' integral'noĭ afferentnoĭ impul'satsii ot retseptorov konechnosti i uroven' poliarizatsii terminaleĭ pervichnykh afferentov vo vremia lokomotsii vysokodetserebrirovannykh koshek.