Effect of strength and proprioception training on eversion to inversion strength ratios in subjects with unilateral functional ankle instability
Objectives: To examine the effect of six weeks of strength and proprioception training on eversion to inversion isokinetic strength ratios (E/I ratios) in subjects with unilateral functional ankle instability. Methods: Thirty eight subjects were randomly assigned to one of four treatment groups: str...
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Published in | British journal of sports medicine Vol. 37; no. 5; pp. 410 - 415 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
England
BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine
01.10.2003
BMJ Publishing Group Ltd BMJ Publishing Group LTD BMJ Group |
Subjects | |
Online Access | Get full text |
ISSN | 0306-3674 1473-0480 1473-0480 |
DOI | 10.1136/bjsm.37.5.410 |
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Summary: | Objectives: To examine the effect of six weeks of strength and proprioception training on eversion to inversion isokinetic strength ratios (E/I ratios) in subjects with unilateral functional ankle instability. Methods: Thirty eight subjects were randomly assigned to one of four treatment groups: strength training (S); proprioception training (P); strength + proprioception training (B); control (C). Isokinetic strength was tested before and after training using a Kin Com 125 automatic positioning isokinetic dynamometer. Subtalar joint eversion and inversion motions were tested both concentrically and eccentrically through a range of motion involving 40°. All peak torque and average torque values were normalised for body mass. E/I ratios were calculated from average torque and peak torque measures by taking the concentric eversion value and combining it with the eccentric inversion value. Data were analysed using a mixed model analysis of variance with repeated measures on the test factor. Average torque and peak torque E/I ratios at 30 and 120°/s were analysed separately. Results: There were no significant differences in average torque and peak torque E/I ratios of the functionally unstable ankle for any of the groups after training compared with before. Conclusions: Six weeks of strength and proprioception training (either alone or combined) had no effect on isokinetic measures of strength in subjects with self reported unilateral functional instability. Further studies examining this agonist (concentric) to antagonist (eccentric) muscle group strength ratio are needed. |
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Bibliography: | href:bjsports-37-410.pdf Correspondence to: Dr Kaminski, Department of Health, Nutrition & Exercise Science, Human Performance Laboratory, University of Delaware, 541 South College Avenue, Newark, DE 19716, USA; kaminski@udel.edu ark:/67375/NVC-2C0710B7-Z PMID:14514531 istex:6AA8C1054531A031C26C9FF037267D494EF18B37 local:0370410 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Feature-1 content type line 23 ObjectType-Undefined-3 |
ISSN: | 0306-3674 1473-0480 1473-0480 |
DOI: | 10.1136/bjsm.37.5.410 |