Open AccessElectromyographic analysis of motor units in patients with post-stroke hemiparesis
Author(s) -
Э. И. Богданов,
R. R. Faskhutdinov,
D. L. Galyamov
Publication year - 1989
Publication title -
kazanskij medicinskij žurnal
Language(s) - English
Resource type - Journals
eISSN - 2587-9359
pISSN - 0368-4814
DOI - 10.17816/kazmj99742
Subject(s) - hemiparesis , pyramidal tracts , physical medicine and rehabilitation , motor neuron , corticospinal tract , medicine , neuroscience , motor system , electromyography , stroke (engine) , motor cortex , motor area , psychology , lesion , pathology , magnetic resonance imaging , radiology , physics , spinal cord , stimulation , diffusion mri , thermodynamics
Among the mechanisms of motor disorders in central motor neuron lesions, along with changes in descending impulses to motoneurons, segmental disorders are also assumed. In 1879, Charcot proposed the hypothesis of transsynaptic degeneration of motoneurons in lesions of central motor neurons. Subsequently, changes in motoneurons in experimental and clinical lesions of the pyramidal tract were observed by many, though not all researchers. Charcot's theory received as if a new confirmation in electromyographic studies, which showed a decrease in the number of motor units and increase in the territories of the preserved motor units in the muscles of the affected side in patients with hemiplegia.