A randomized controlled trial of eccentric versus concentric exercise in chornic tennis elbow (lateral epicondylosis)
2011 (English)In: European Journal of Pain, ISSN 1090-3801, E-ISSN 1532-2149Article in journal (Refereed) Submitted
Chronic tennis elbow was used in this paper as a model for chronic soft tissue pain, which is a common problem, often difficult to treat. Exercise has been shown to have positive effects in chronic pain, but whether eccentric or concentric exercise should be used is controversial. The aim of this study was to test the effects of eccentric versus concentric exercise on pain, strength, function and quality of life in chronic tennis elbow. One hundred and twenty subjects with tennis elbow lasting for more than three months were randomly allocated to eccentric exercise (n=60) or to concentric exercise (n=60), performed at home daily for three months with increasing load. The subjects were seen at baseline and after one, two, three, six, and twelve months of follow up, where the outcome measures pain during maximum voluntary muscle contraction (Cozen’s test), pain during maximum muscle elongation (modified Empty can test), and muscle strength were measured. Function was measured with the Disability of the Arm, Shoulder and Hand questionnaire (DASH) and quality of life with the Gothenburg Quality of Life questionnaire at baseline and after three, six, and twelve months. The eccentric exercise group had faster regression of pain, both during muscle contraction and elongation, as well as greater increase of muscle strength than the concentric group (p<0.0001, p=0.006, and p<0.02, respectively). The differences persisted throughout the follow-up period. There were no significant differences between the groups regarding DASH scores or quality of life measures.
Place, publisher, year, edition, pages
eccentric, exercise, concentric, RCT, tennis elbow, epicondylosis, tendinosis, tendinitis, chronic, pain
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-160038OAI: oai:DiVA.org:uu-160038DiVA: diva2:447866