Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity

Nicolau Melo De Souza 1
, 
Luiz Fernando Ramos-Silva 1
, 
Paulo Henrique Borges 2
, 
Felipe A Moura 1
, 
Enio R.V. Ronque 1
, 
Julio Cesar da Costa 1
1
 
2
 
Publication type: Journal Article
Publication date: 2024-12-07
scimago Q4
SJR: 0.201
CiteScore: 0.7
Impact factor: —
ISSN: 01013289, 21793255
Abstract

ABSTRACT The aim of the study was to compare isokinetic performance (PT) of knee extensors (ext) and flexors (flex), H:Q ratio, and PT asymmetry in young soccer players based on somatic maturation. 80 soccer players (aged 12-17) were sampled, classified as pre-PHV (n=19) and post-PHV (n=61). Isokinetic dynamometry assessed knee extensors/flexors at 60º/s. Pre-PHV had lower body mass/height than post-PHV (P < 0.001). Pre-PHV exhibited lower PT for dominant and non-dominant leg in ext and flex (P < 0.001). No differences in asymmetry (ext: 31.6% vs 31.1%; flex: 31.6% vs 34.4%) and H:Q ratio (dominant: 42.1% vs 32.8%; non-dominant: 26.3% vs 39.3%) between PHV groups, where asymmetry was considered >15%, and cutoff points for each limb H:Q were set at ≥60%. Study showed increased isokinetic performance according to PHV, but no effect on asymmetries and H:Q ratio.

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Souza N. M. D. et al. Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity // Revista Brasileira de Ciencias do Esporte. 2024. Vol. 46.
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Souza N. M. D., Ramos-Silva L. F., Borges P. H., Moura F. A., Ronque E. R., Costa J. C. D. Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity // Revista Brasileira de Ciencias do Esporte. 2024. Vol. 46.
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TY - JOUR
DO - 10.1590/rbce.46.e20230058
UR - http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-32892024000100220&tlng=en
TI - Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity
T2 - Revista Brasileira de Ciencias do Esporte
AU - Souza, Nicolau Melo De
AU - Ramos-Silva, Luiz Fernando
AU - Borges, Paulo Henrique
AU - Moura, Felipe A
AU - Ronque, Enio R.V.
AU - Costa, Julio Cesar da
PY - 2024
DA - 2024/12/07
PB - Colegio Brasileiro de Ciencias do Esporte (CBCE)
VL - 46
SN - 0101-3289
SN - 2179-3255
ER -
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@article{2024_Souza,
author = {Nicolau Melo De Souza and Luiz Fernando Ramos-Silva and Paulo Henrique Borges and Felipe A Moura and Enio R.V. Ronque and Julio Cesar da Costa},
title = {Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity},
journal = {Revista Brasileira de Ciencias do Esporte},
year = {2024},
volume = {46},
publisher = {Colegio Brasileiro de Ciencias do Esporte (CBCE)},
month = {dec},
url = {http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-32892024000100220&tlng=en},
doi = {10.1590/rbce.46.e20230058}
}