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Monitoring of eccentric hamstring strength and eccentric derived strength ratios in judokas from a single weight category
ID
Šimenko, Jožef
(
Author
),
ID
Karpljuk, Damir
(
Author
),
ID
Hadžić, Vedran
(
Author
)
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https://www.mdpi.com/1660-4601/19/1/604
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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.
Language:
English
Keywords:
sport
,
judo
,
strength ratios
,
bilateral asymmetries
,
dynamic control ratio
,
hamstring eccentric to concentric ratio
,
weight categories
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FŠ - Faculty of Sport
Publication status:
Published
Publication version:
Version of Record
Year:
2022
Number of pages:
10 str.
Numbering:
Vol. 19, iss. 1, art. 604
PID:
20.500.12556/RUL-136748
UDC:
796.853.23
ISSN on article:
1660-4601
DOI:
10.3390/ijerph19010604
COBISS.SI-ID:
92195587
Publication date in RUL:
19.05.2022
Views:
550
Downloads:
101
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Record is a part of a journal
Title:
International journal of environmental research and public health
Shortened title:
Int. j. environ. res. public health
Publisher:
MDPI
ISSN:
1660-4601
COBISS.SI-ID:
1818965
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:
05.01.2022
Secondary language
Language:
Slovenian
Keywords:
šport
,
judo
,
razmerja moči
,
bilateralne asimetrije
,
dinamično nadzorno razmerje
,
ekscentrična mišična moč
,
koncentrična mišična moč
,
težnostne kategorije
Projects
Funder:
Other - Other funder or multiple funders
Funding programme:
Public Scholarship, Development, Disability and Maintenance Fund of the Republic of Slovenia
Funder:
ARRS - Slovenian Research Agency
Project number:
P5-0147
Name:
Kineziologija monostrukturnih, polistrukturnih in konvencionalnih športov
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