| Quantitative analysis of motor unit action potentials in the subclavian muscle of healthy horses. | |
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MedLine Citation:
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PMID: 11843118 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To evaluate the application of analysis of motor unit action potentials (MUAP) in horses and to obtain values of MUAP for the subclavian muscle of horses. ANIMALS: 10 healthy adult Dutch Warmblood horses. PROCEDURE: Electromyographic examination of the subclavian muscle in conscious nonsedated horses was performed to evaluate insertional activity, spontaneous activity, MUAP variables, and recruitment patterns. Muscle and body temperatures were measured at the beginning and end of the procedure. Amplitude, duration, number of phases, and number of changes in direction (ie, turns) for all representative MUAP were analyzed to determine values for this muscle in this group of horses. RESULTS: Mean +/- SD duration of insertional activity was 471.7 +/- 33.45 milliseconds. Mean MUAP amplitude in the examined horses was 379 RV (95% confidence interval [CI], 349 to 410 microV). Mean MUAP duration of the subclavian muscle was 727 milliseconds (95% CI, 6.84 to 7.71 milliseconds). Mean number of phases was 2.9, and mean number of turns was 3.0. Prevalence of polyphasic MUAP defined as MUAP with > 4 phases, was 77%. Number of MUAP that had > 5 turns was 2.4%. Satellite potentials were found in 1.0% of the MUAP CONCLUSIONS AND CLINICAL RELEVANCE: This study revealed that electromyography including MUAP analysis can be performed in horses, and values for the subclavian muscle in healthy adult horses can be obtained. Analysis of MUAP could be a valuable diagnostic tool for use in discriminating between myogenic and neurogenic problems in horses. |
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Authors:
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Inge D Wijnberg; Hessel Franssen; Johannes H van der Kolk; Henk J Breukink |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of veterinary research Volume: 63 ISSN: 0002-9645 ISO Abbreviation: Am. J. Vet. Res. Publication Date: 2002 Feb |
Date Detail:
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Created Date: 2002-02-14 Completed Date: 2002-07-31 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0375011 Medline TA: Am J Vet Res Country: United States |
Other Details:
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Languages: eng Pagination: 198-203 Citation Subset: IM |
Affiliation:
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Department of Equine Sciences, Discipline Internal Medicine, Utrecht University, The Netherlands. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Action Potentials Animals Body Temperature Electromyography / veterinary Electrophysiology Horses / physiology* Muscle, Skeletal / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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