| Evidence of increased motoneuron excitability in stroke patients without clinical spasticity. | |
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MedLine Citation:
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PMID: 18794219 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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INTRODUCTION: The contribution of hyperreflexia to impairment after stroke is debated. Spinal motoneuron excitability in healthy subjects and stroke patients with and without spasticity was compared. METHODS: Twenty-four patients with single stroke more than 6 months ago and 18 gender-matched healthy volunteers were included. Spasticity was assessed according to the Modified Ashworth Scale. Mmax amplitude and F wave frequency in the abductor pollicis brevis muscle were measured by electrical stimulation of the median nerve. RESULTS: Mmax values were comparable between the groups. However, patients with (n=7) and without (n=17) clinically evident spasticity had a significant increase in F wave frequency when compared with healthy subjects. F wave frequency did not differ between spastic and nonspastic patients. DISCUSSION: Increase in spinal motoneuron excitability after stroke is present in stroke patients with minor or no motor deficiencies and does not necessarily lead to spasticity. |
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Authors:
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Jakob Udby Blicher; Jørgen Feldbaek Nielsen |
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Publication Detail:
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Type: Journal Article Date: 2008-09-15 |
Journal Detail:
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Title: Neurorehabilitation and neural repair Volume: 23 ISSN: 1545-9683 ISO Abbreviation: Neurorehabil Neural Repair Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2008-12-25 Completed Date: 2009-03-05 Revised Date: 2009-10-15 |
Medline Journal Info:
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Nlm Unique ID: 100892086 Medline TA: Neurorehabil Neural Repair Country: United States |
Other Details:
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Languages: eng Pagination: 14-6 Citation Subset: IM |
Affiliation:
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Hammel Neurorehabilitation and Research Centre, Aarhus University Hospital, Hammel, Denmark. neujbl@sc.aaa.dk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Action Potentials
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physiology Adult Aged Brain / pathology, physiopathology Electric Stimulation Electrodiagnosis / methods Electromyography Female Humans Male Median Nerve / physiopathology Middle Aged Motor Neurons / physiology* Muscle Contraction / physiology Muscle Spasticity / diagnosis*, etiology, physiopathology* Muscle, Skeletal / innervation, physiopathology Neural Conduction / physiology Predictive Value of Tests Reflex, Abnormal / physiology* Spinal Cord / physiopathology* Stroke / complications, physiopathology* |
| Comments/Corrections | |
Comment In:
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Neurorehabil Neural Repair. 2009 Oct;23(8):870; author reply 870-1
[PMID:
19675124
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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