A comparison of isokinetic and functional methods of assessing bilateral strength imbalance

Jones, Paul ORCID: 0000-0002-3295-7670 and Bampouras, Theodoros (2010) A comparison of isokinetic and functional methods of assessing bilateral strength imbalance. Journal of Strength and Conditioning Research, 24 (6). pp. 1553-1558. ISSN 1533-4287

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Abstract

Muscle strength imbalances have been linked with poor agility performance and higher injury risk. Isokinetic dynamometry has been used to investigate such imbalances; however this method is impractical and inaccessible for most strength and conditioning coaches. The aim of the study was to compare isokinetic dynamometry with functional field tests for assessing bilateral strength imbalance. Thirteen male athletes from various sports (mean ± SD: age 21 ± 1.1 years, height 179.8 ± 7.0 cm, body mass 80.8 ± 9.7 kg) participated in the study. Knee flexor and extensor strength at 60 deg.s-1 was assessed for both limbs with the use of isokinetic dynamometry. Field tests involved seated unilateral leg press, horizontal hop, single leg vertical and drop jumps. Significant differences (p0.05). No significant relationships between strength dominant/non-dominant ratios of isokinetic variables and the field tests were evident (p>0.05). The findings provide support for the use of field tests to detect imbalances between lower limbs, but the ultimate choice of test used should depend on the specific strength quality that predominates in the sport.

Item Type: Article
Additional Information: This is an the authors version of the article published in Journal of Strength & Conditioning Research 2010 National Strength and Conditioning Association, Lippincott Williams & Wilkins, All rights reserved.
Uncontrolled Keywords: asymmetry, field test, injury risk, isokinetic strength
Divisions: School of Sport and Biological Sciences > Sports and Sport Rehabilitation
Depositing User: Scott Wilson
Date Deposited: 26 Nov 2013 12:51
Last Modified: 04 Apr 2019 12:19
Identification Number: 10.1519/JSC.0b013e3181dc4392
URI: http://ubir.bolton.ac.uk/id/eprint/411

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