Research Repository

Monitoring of Eccentric Hamstring Strength and Eccentric Derived Strength Ratios in Judokas from a Single Weight Category

Šimenko, Jožef and Karpljuk, Damir and Hadžić, Vedran (2022) 'Monitoring of Eccentric Hamstring Strength and Eccentric Derived Strength Ratios in Judokas from a Single Weight Category.' International Journal of Environmental Research and Public Health, 19 (1). p. 604. ISSN 1660-4601

[img]
Preview
Text
ijerph-19-00604-v2.pdf - Published Version
Available under License Creative Commons Attribution.

Download (721kB) | Preview

Abstract

Background: This study was designed to perform isokinetic knee testing of male judokas competing in the under 73 kg category. The main aims were: to establish the concentric (CON) and eccentric (ECC) strength profile of hamstrings (H) and CON profile of quadriceps (Q) muscles; to evaluate the differences in CON and ECC peak torques (PT) with various strength ratios and their bilateral asymmetries; the calculation of the dynamic control ratio (DCR) and H ECC to CON ratio (HEC); Methods: 12 judokas competing on a national and international levels with a mean age of 19 ± 4 years, a weight of 75 ± 2 kg and with a height of 176 ± 5 cm were tested. All the subjects were right-hand dominant. Isokinetic testing was performed on iMOMENT, SMM isokinetic machine (SMM, Maribor, Slovenia). The paired t-test was used to determine the difference between paired variables. The level of significance was set at p ≤ 0.05; Results: Statistical differences between left (L) and right (R) Q PT (L 266; R 241 Nm), H ECC PT (L 145; R 169 Nm), HQR (L 0.54; R 0.63), DCR (L 0.55; R 0.70), HEC (L 1.02; R 1.14) and PTQ/BW (L 3.57; R 3.23 Nm/kg) were shown. Bilateral strength asymmetries in CON contraction of 13.52% ± 10.04 % for Q, 10.86% ± 7.67 % for H and 22.04% ± 12.13% for H ECC contraction were shown. Conclusions: This study reports the isokinetic strength values of judokas in the under 73 kg category, emphasising eccentric hamstring strength and eccentric derived strength ratios DCR and HEC. It was shown that asymmetries are better detected using eccentric testing and that the dominant leg in judokas had stronger eccentric hamstring strength resulting in higher DCR and HEC.

Item Type: Article
Uncontrolled Keywords: judo; strength ratios; bilateral asymmetries; dynamic control ratio; hamstring eccentric to concentric ratio; weigh categories
Divisions: Faculty of Humanities
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 17 Jan 2022 12:51
Last Modified: 19 Jun 2022 11:57
URI: http://repository.essex.ac.uk/id/eprint/31984

Actions (login required)

View Item View Item