Elbow flexor and extensor muscle weakness in lateral epicondylalgia

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Title Elbow flexor and extensor muscle weakness in lateral epicondylalgia
Author Coombes, Brooke K; Bisset, Leanne Margaret; Vicenzino, Bill
Journal Name British Journal of Sports Medicine
Year Published 2012
Place of publication United Kingdom
Publisher BMJ Group
Abstract Objective To evaluate whether deficits of elbow flexor and extensor muscle strength exist in lateral epicondylalgia (LE) in comparison with a healthy control population. Design Cross-sectional study. Participants 150 participants with unilateral LE were compared with 54 healthy control participants. Main outcome measures Maximal isometric elbow flexion and extension strength were measured bilaterally using a purpose-built standing frame such that gripping was avoided. Results The authors found significant side differences in elbow extensor (−6.54 N, 95% CI −11.43 to −1.65, p=0.008, standardised mean difference (SMD) −0.45) and flexor muscle strength (−11.26 N, 95% CI −19.59 to −2.94, p=0.009, SMD −0.46) between LE and control groups. Within the LE group, only elbow extensor muscle strength deficits between sides was significant (affected–unaffected: −2.94 N, 95% CI −5.44 to −0.44). Conclusion Small significant deficits of elbow extensor and flexor muscle strength exist in the affected arm of unilateral LE in comparison with healthy controls. Notably, comparing elbow strength between the affected and unaffected sides in unilateral epicondylalgia is likely to underestimate these deficits.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1136/bjsm.2011.083949
Copyright Statement Copyright remains with the authors 2011. The attached file is reproduced here in accordance with the copyright policy of the publisher. For information about this journal please refer to the journal's website or contact the authors.
Volume 46
Issue Number 6
Page from 449
Page to 453
ISSN 1473-0480
Date Accessioned 2012-02-16
Language en_US
Research Centre Centre for Musculoskeletal Research; Menzies Health Institute Qld
Faculty Griffith Health Faculty
Subject Medical and Health Sciences
URI http://hdl.handle.net/10072/43257
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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