Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity
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). Isokine...
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Colégio Brasileiro de Ciências do Esporte
2024-12-01
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| Series: | Revista Brasileira de Ciências do Esporte |
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| author | Nicolau Melo de Souza Luiz Fernando Ramos-Silva Paulo Henrique Borges Felipe Arruda Moura Enio Ricardo Vaz Ronque Julio Cesar da Costa |
| author_facet | Nicolau Melo de Souza Luiz Fernando Ramos-Silva Paulo Henrique Borges Felipe Arruda Moura Enio Ricardo Vaz Ronque Julio Cesar da Costa |
| author_sort | Nicolau Melo de Souza |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-301624415a3c4e54a5dccf47905ece9d |
| institution | Kabale University |
| issn | 2179-3255 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Colégio Brasileiro de Ciências do Esporte |
| record_format | Article |
| series | Revista Brasileira de Ciências do Esporte |
| spelling | doaj-art-301624415a3c4e54a5dccf47905ece9d2024-12-17T07:53:11ZengColégio Brasileiro de Ciências do EsporteRevista Brasileira de Ciências do Esporte2179-32552024-12-014610.1590/rbce.46.e20230058Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocityNicolau Melo de Souzahttps://orcid.org/0000-0002-9390-5794Luiz Fernando Ramos-Silvahttps://orcid.org/0000-0002-9960-4503Paulo Henrique Borgeshttps://orcid.org/0000-0001-5056-9666Felipe Arruda Mourahttps://orcid.org/0000-0002-0108-7246Enio Ricardo Vaz Ronquehttps://orcid.org/0000-0003-3430-3993Julio Cesar da Costahttps://orcid.org/0000-0003-4538-6915ABSTRACT 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-32892024000100220&lng=en&tlng=enYouth trainingSomatic maturityInjury preventionMuscular strength |
| spellingShingle | Nicolau Melo de Souza Luiz Fernando Ramos-Silva Paulo Henrique Borges Felipe Arruda Moura Enio Ricardo Vaz Ronque Julio Cesar da Costa Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity Revista Brasileira de Ciências do Esporte Youth training Somatic maturity Injury prevention Muscular strength |
| title | Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity |
| title_full | Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity |
| title_fullStr | Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity |
| title_full_unstemmed | Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity |
| title_short | Bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity |
| title_sort | bilateral asymmetries and the performance profile in isokinetic knee assessment in young soccer players according to peak height velocity |
| topic | Youth training Somatic maturity Injury prevention Muscular strength |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-32892024000100220&lng=en&tlng=en |
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