[Reflex component of the swing phase: a comparative analysis of locomotion in intact and deafferentated rats].
Comparative analysis of hindlimb biomechanics and EMG activity with different kinds of locomotion before and after bilateral LI-S2 spinal cord deafferentation were performed in rats. A delay of the onset and increase of duration of knee and ankle joint flexion, but not hip joint flexion were revealed after deafferentation. It was accompanied by reinforcing of the F-period of the swing phase which was more prominent during walking than swimming. The amplitude and duration of the muscle activity decreased, in particular, during the F-period of the swing phase. The role of afferent inflow in the formation of the F-phase of the locomotor cycle is discussed.
Iakhnitsa
I A
IA
Bulgakova
N V
NV
Piliavskiĭ
A I
AI
D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D001696:Biomechanical Phenomena; D004576:Electromyography; D006614:Hindlimb / Q000502:physiology; D008124:Locomotion; D009121:Muscle Denervation; D051381:Rats; D012018:Reflex / Q000502:physiology*; D013127:Spinal Nerves / Q000502:physiology*
Reflektornyĭ komponent fazy perenosa: sravnitel'nyĭ analiz lokomot sii intaktnykh i deafferentirovannykh krys.