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Báo cáo khoa hoc:" Motor unit potential morphology differences in individuals with non-specific arm pain and lateral epicondylitis"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Motor unit potential morphology differences in individuals with non-specific arm pain and lateral epicondylitis | Journal of NeuroEngineering and Rehabilitation BioMed Central Research Motor unit potential morphology differences in individuals with non-specific arm pain and lateral epicondylitis Kristina M Calder 1 Daniel W Stashuk2 and Linda McLean1 Open Access Address 1School of Rehabilitation Therapy Louise D. Acton Building 31 George Street Queen s University Kingston Ontario Canada and 2Department of Systems Design Engineering University of Waterloo Waterloo Ontario Canada Email Kristina M Calder - calderkristina@hotmail.com Daniel W Stashuk - stashuk@uwaterloo.ca Linda McLean - mcleanl@queensu.ca Corresponding author Published 16 December 2008 Received 7 April 2008 .r . . . . . r Accepted 16 December 2008 Journal of NeuroEngineering and Rehabilitation 2008 5 34 doi 10.1186 1743-0003-5-34 This article is available from http www.jneuroengrehab.cOm content 5 1 34 2008 Calder et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background The pathophysiology of non-specific arm pain NSAP is unclear and the diagnosis is made by excluding other specific upper limb pathologies such as lateral epicondylitis or cervical radiculopathy. The purpose of this study was to determine i if the quantitative parameters related to motor unit potential morphology and or motor unit firing patterns derived from electromyographic EMG signals detected from an affected muscle of patients with NSAP are different from those detected in the same muscle of individuals with lateral epicondylitis LE and or control subjects and ii if the quantitative EMG parameters suggest that the underlying pathophysiology in NSAP is either myopathic or neuropathic in nature. Methods Sixteen subjects with NSAP 11 subjects with LE eight subjects deemed to be at-risk .