Unilateral and ipsilateral strength asymmetries in elite youth soccer players with respect to muscle group and limb dominance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11510%2F16%3A10336964" target="_blank" >RIV/00216208:11510/16:10336964 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4067/S0717-95022016000400027" target="_blank" >http://dx.doi.org/10.4067/S0717-95022016000400027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4067/S0717-95022016000400027" target="_blank" >10.4067/S0717-95022016000400027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unilateral and ipsilateral strength asymmetries in elite youth soccer players with respect to muscle group and limb dominance

Popis výsledku v původním jazyce

The purpose was to compare knee extensors and flexors' strength in sedentary children and detect its differences with respect to gender and lower limb dominancy. The group of untrained children (boys: n = 20, age = 14.5 +- 0.2 years, height = 171.1 +- 5.3cm, weight = 60.4 +- 20.3 cm, girls: n = 18, age = 11.6 +- 0.4 years, height = 163.5 +- 5.0 cm, weight = 55.2 +- 8.9 cm) was tested on the Cybex isokinetic dynamometer at 60 o.s-1 for the dominant (DL) and non-dominant leg (NL) in concentric contraction. Univariate ANOVA (2x2) with two between subject effects (gender (G), laterality (L)) was used for evaluation of peak torque (PT) differences between the factors for extensors or flexors. Strength of knee extensors (PTE) and flexors (PTF) was significantly different depending on gender (PTE: F1,76 = 23.92, p < .01, ηp2 = .25; PTF: F1,76 = 17.81 p < .01, ηp2 = .20). Limb dominance had an insignificant effect on the level of both PTE (F1,76 = 0.94, p > .05, ηp2 = .01) and PTF (F1,76 = 0.48, p > .05, ηp2 = .01). The interaction effect between velocity and gender was insignificant (p > .05). Bilateral strength deficit between the limbs (Q:Q) was 7.27 % in boys and 1.78 % in girls. Concerning knee flexors, the bilateral deficit in boys was 5.39 % while in girls it was 3.41 %. The unilateral ratio (H:Q) in boys was 50.28 % (DL) and 51.31 % (NL). The girls achieved a lower unilateral ratio in comparison to the boys (49.74 % - DL and 48.92 % - NL). Early identification of muscle imbalances and their compensation using verified intervention procedures should be a part of movement intervention at schools, sports clubs and free time activities in youth age with the aim of early elimination of the detected maladaptive effects.

Název v anglickém jazyce

Unilateral and ipsilateral strength asymmetries in elite youth soccer players with respect to muscle group and limb dominance

Popis výsledku anglicky

The purpose was to compare knee extensors and flexors' strength in sedentary children and detect its differences with respect to gender and lower limb dominancy. The group of untrained children (boys: n = 20, age = 14.5 +- 0.2 years, height = 171.1 +- 5.3cm, weight = 60.4 +- 20.3 cm, girls: n = 18, age = 11.6 +- 0.4 years, height = 163.5 +- 5.0 cm, weight = 55.2 +- 8.9 cm) was tested on the Cybex isokinetic dynamometer at 60 o.s-1 for the dominant (DL) and non-dominant leg (NL) in concentric contraction. Univariate ANOVA (2x2) with two between subject effects (gender (G), laterality (L)) was used for evaluation of peak torque (PT) differences between the factors for extensors or flexors. Strength of knee extensors (PTE) and flexors (PTF) was significantly different depending on gender (PTE: F1,76 = 23.92, p < .01, ηp2 = .25; PTF: F1,76 = 17.81 p < .01, ηp2 = .20). Limb dominance had an insignificant effect on the level of both PTE (F1,76 = 0.94, p > .05, ηp2 = .01) and PTF (F1,76 = 0.48, p > .05, ηp2 = .01). The interaction effect between velocity and gender was insignificant (p > .05). Bilateral strength deficit between the limbs (Q:Q) was 7.27 % in boys and 1.78 % in girls. Concerning knee flexors, the bilateral deficit in boys was 5.39 % while in girls it was 3.41 %. The unilateral ratio (H:Q) in boys was 50.28 % (DL) and 51.31 % (NL). The girls achieved a lower unilateral ratio in comparison to the boys (49.74 % - DL and 48.92 % - NL). Early identification of muscle imbalances and their compensation using verified intervention procedures should be a part of movement intervention at schools, sports clubs and free time activities in youth age with the aim of early elimination of the detected maladaptive effects.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

AK - Sport a aktivity volného času

OECD FORD obor

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Projekt

<a href="/cs/project/GA16-21791S" target="_blank" >GA16-21791S: Identifikace, diferenciace a diskriminace maladaptačných procesů u dětí a mládeže</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Morphology [online]

ISSN

0717-9502

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CL - Chilská republika

Počet stran výsledku

6

Strana od-do

1339-1344

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85011388668