EMG Changes of the Forearm Extensor Muscles at Different Forearm Postures

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dc.contributor.advisorMoore, Anne E.
dc.creatorSadeghzadeh, Mani
dc.date.accessioned2015-08-28T15:21:05Z
dc.date.available2015-08-28T15:21:05Z
dc.date.copyright2015-01-13
dc.date.issued2015-08-28
dc.date.updated2015-08-28T15:21:05Z
dc.degree.disciplineKinesiology & Health Science
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractLateral epicondylitis is caused by repetitive and forceful movements of the forearm over long durations without sufficient rest in between. This study aimed to compare muscle length change in directions at different forearm postures. Fifteen healthy participants performed wrist extension against a force transducer at forearm pronation, supination, and neutral at 75±1% of their maximum voluntary contraction. Surface electromyography was used to record muscle activity of the extensor carpi radialis brevis, extensor digitorum communis, and extensor carpi ulnaris. There was a significant interaction between forearm posture and muscles analyzed. This study suggests that there is an opposite length change of the extensor carpi radialis brevis compared to the extensor digitorum communis and extensor carpi ulnaris, strengthening the link between pronation and supination and the development of pain at the lateral epicondyle.
dc.identifier.urihttp://hdl.handle.net/10315/30001
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectKinesiology
dc.subject.keywordsLateral epicondylitis
dc.subject.keywordsElectromyography
dc.subject.keywordsExtensor carpi radialis brevis
dc.subject.keywordsExtensor carpi ulnaris
dc.subject.keywordsExtensor digitorum communis
dc.subject.keywordsTennis elbow
dc.subject.keywordsForearm extensor
dc.subject.keywordsForearm posture
dc.titleEMG Changes of the Forearm Extensor Muscles at Different Forearm Postures
dc.typeElectronic Thesis or Dissertationen_US

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