Document Detail

Comparison of the tonic stretch reflex in athetotic patients during rest and voluntary activity.
MedLine Citation:
PMID:  4354399     Owner:  NLM     Status:  MEDLINE    
An electromyographic technique was used to record the tonic stretch reflex (TSR) responses to passive sinusoidal stretching of biceps brachii muscle in athetotic patients. The TSR transmission characteristics measured while the patient was in a relaxed state were compared with those measured while the patient was voluntarily active. The resting TSR and action TSR were found to differ markedly. Sensitivity, pattern, duration, and timing of the TSR responses were all changed during voluntary activity. The results suggest that the TSR in athetosis is functionally reorganized by supraspinal influences during voluntary activity. It is proposed that athetoid movements and action tremor may be a manifestation of abnormal action TSR caused by faulty supra-spinal control during activity.
P D Neilson; C J Andrews
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of neurology, neurosurgery, and psychiatry     Volume:  36     ISSN:  0022-3050     ISO Abbreviation:  J. Neurol. Neurosurg. Psychiatr.     Publication Date:  1973 Aug 
Date Detail:
Created Date:  1973-11-13     Completed Date:  1973-11-13     Revised Date:  2012-05-30    
Medline Journal Info:
Nlm Unique ID:  2985191R     Medline TA:  J Neurol Neurosurg Psychiatry     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  547-54     Citation Subset:  IM; S    
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MeSH Terms
Athetosis / etiology,  physiopathology*
Brain Damage, Chronic / complications
Cerebral Palsy / complications
Muscles / physiopathology*
Physical Exertion*
Reflex, Monosynaptic
Spinal Cord / physiopathology
Synaptic Transmission
Tremor / physiopathology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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