Adaptive Locomotor Plasticity in Chronic Spinal Cats after Ankle Extensors Neurectomy
نویسندگان
چکیده
منابع مشابه
Adaptive locomotor plasticity in chronic spinal cats after ankle extensors neurectomy.
After lateral gastrocnemius-soleus (LGS) nerve section in intact cats, a rapid locomotor compensation involving synergistic muscles occurs and is accompanied by spinal reflex changes. Only some of these changes are maintained after acute spinalization, indicating the involvement of descending pathways in functional recovery. Here, we address whether the development of these adaptive changes is ...
متن کاملLocomotor and reflex adaptation after partial denervation of ankle extensors in chronic spinal cats.
This work investigates the capacity of the spinal cord to generate locomotion after a complete spinal section and its ability to adapt its locomotor pattern after a peripheral nerve lesion. To study this intrinsic adaptive capacity, the left lateral gastrocnemius-soleus (LGS) nerve was sectioned in three cats that expressed a stable locomotion following a complete spinal transection. The electr...
متن کاملLocomotion of the hindlimbs after neurectomy of ankle flexors in intact and spinal cats: model for the study of locomotor plasticity.
To study the potential plasticity of locomotor networks in the spinal cord, an important issue for locomotor rehabilitation after spinal injuries, we have investigated the locomotor performance of cats before and after a unilateral denervation of the ankle flexors tibialis anterior (TA) and extensor digitorum longus (EDL) both in cats with intact spinal cord and after spinalization. The effects...
متن کاملPlasticity of reflexes from the foot during locomotion after denervating ankle extensors in intact cats.
Although sensory feedback is important in regulating the timing and magnitude of muscle activity during locomotion few studies have evaluated how it changes after peripheral nerve lesions. To assess this, reflexes evoked by stimulating a nerve before and after denervating other nerves can be quantified to determine changes. The aim of this study was to investigate consequences of denervating an...
متن کاملAdaptive changes in locomotor activity following botulinum toxin injection in ankle extensor muscles of cats.
The present study investigated the adaptations made in motor behavior following a temporary reduction in ankle extensor activity in the walking cat. Temporary muscle weakness was induced by injecting botulinum toxin into the lateral gastrocnemius (LG), plantaris (PL), and soleus (SOL) muscles, or SOL alone. The medial gastrocnemius (MG) muscle was not injected. Adaptations in the level of muscl...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 2001
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.21-10-03531.2001