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Abnormal EMG muscle activity during gait in patients without neurological disorders

Brunner, R. and Romkes, J.. (2008) Abnormal EMG muscle activity during gait in patients without neurological disorders. Gait Posture, Vol. 27. pp. 399-407.

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Official URL: http://edoc.unibas.ch/dok/A6006132

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Abstract

Abnormal muscle activity in patients with a central neurological disorder is commonly attributed to the underlying condition. This study considered abnormal muscle activity in orthopaedic patients who had no neurological involvement. Thirty-nine patients with a variety of orthopaedic problems underwent gait analysis, which included measurement of passive range of motion at the legs, manual muscle strength testing (MMST), instrumented gait analysis, and surface electromyography (EMG). Abnormal timing and duration of EMG activity was found in 51/77 legs. Muscle weakness was the most important cause of the abnormal EMG activity (p>0.001). However, abnormal muscle activity did not correspond to the joint which was controlled by the weak muscles. The triceps surae muscle, represented by the medial gastrocnemius, was significantly more involved (68.6%). Co-activity of the knee extensors and hamstrings was found in 17% of the affected legs. Three out of the 51 legs showed a continuous activity of the rectus femoris muscle in swing. These findings illustrate mechanisms to compensate for muscle weakness in stance in neurologically intact subjects.
Faculties and Departments:03 Faculty of Medicine > Bereich Kinder- und Jugendheilkunde (Klinik) > Kinder- und Jugendheilkunde (UKBB) > Kinderorthopädie (Hasler)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Kinder- und Jugendheilkunde (Klinik) > Kinder- und Jugendheilkunde (UKBB) > Kinderorthopädie (Hasler)
UniBasel Contributors:Brunner, Reinald G.H.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Elsevier
ISSN:0966-6362
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:08 Nov 2012 16:22
Deposited On:08 Nov 2012 16:09

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