Document Detail


Peroneus longus can not be fully activated during ankle complex exercises by uninjured subjects.
MedLine Citation:
PMID:  10752306     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study characterized, for the first time, the extent to which the peroneus longus muscle can be voluntarily activated by uninjured subjects during common ankle rehabilitative exercises. Ten healthy subjects performed isometric maximum voluntary contractions (MVCs) of eversion and plantarflexion on a dynamometer and against manual resistance, and performed dynamic whole-body activities that place large loads on the ankle complex (vertical jumps and side-cuts). During these activities, surface EMG signals were collected from the peroneus longus and expressed as a percentage of the maximum motor responses elicited by electric stimulation. Voluntary activation levels of the peroneus longus during isometric MVCs performed on the dynamometer and performed against manual resistance were not significantly different. Side-cuts produced significantly larger activation levels than those maximum vertical jumps and the isometric exercises. Nevertheless, the activation levels were substantially lower than those reported for other lower extremity muscles. These results serve as the basis for further questions related to whether voluntary peroneus longus activation level can be affected by specific rehabilitative efforts, whether activation levels are influenced by acute and chronic ankle complex injuries and, if so, whether this effect influences the functional outcome of rehabilitation efforts following ankle injuries.
Authors:
T Ozaki; K Mizuno; M D Grabiner
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Kobe journal of medical sciences     Volume:  45     ISSN:  0023-2513     ISO Abbreviation:  Kobe J Med Sci     Publication Date:  1999 Aug 
Date Detail:
Created Date:  2000-04-20     Completed Date:  2000-04-20     Revised Date:  2008-04-08    
Medline Journal Info:
Nlm Unique ID:  0413531     Medline TA:  Kobe J Med Sci     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  119-26     Citation Subset:  IM    
Affiliation:
Department of Orthopaedic Surgery, Kobe University School of Medicine.
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MeSH Terms
Descriptor/Qualifier:
Adult
Ankle*
Electric Stimulation
Electromyography
Exercise*
Female
Humans
Male
Muscle Contraction
Muscle, Skeletal / physiology*
Weight Lifting

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


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