Elbow flexor and extensor muscle weakness in lateral epicondylalgia

Coombes, Brooke K., Bisset, Leanne and Vicenzino, Bill (2012) Elbow flexor and extensor muscle weakness in lateral epicondylalgia. British Journal of Sports Medicine, 46 6: 449-453. doi:10.1136/bjsm.2011.083949

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Author Coombes, Brooke K.
Bisset, Leanne
Vicenzino, Bill
Title Elbow flexor and extensor muscle weakness in lateral epicondylalgia
Journal name British Journal of Sports Medicine   Check publisher's open access policy
ISSN 0306-3674
1473-0480
Publication date 2012-05-01
Year available 2011
Sub-type Article (original research)
DOI 10.1136/bjsm.2011.083949
Open Access Status File (Author Post-print)
Volume 46
Issue 6
Start page 449
End page 453
Total pages 6
Place of publication London, United Kingdom
Publisher B M J Group
Collection year 2012
Language eng
Formatted 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. Trial Registration: Australian New Zealand Clinical Trials Register ACTRN12609000051246.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Health and Rehabilitation Sciences Publications
 
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Created: Wed, 23 Nov 2011, 10:15:36 EST by Ms Kerry Mellifont on behalf of School of Health & Rehabilitation Sciences