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Change of Direction Deficit in National Team Rugby Union Players: Is There an Influence of Playing Position?

The aim of this study was to investigate the change of direction (COD) ability and deficits of elite rugby union players, discriminating between position (backs and forwards), and between “faster and slower players”, in multiple COD tasks. Twenty-four male rugby union players from the Brazilian seni...

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Autores principales: Freitas, Tomás T., Alcaraz, Pedro E., Bishop, Chris, Calleja-González, Julio, Arruda, Ademir F. S., Guerriero, Aristide, Reis, Valter P., Pereira, Lucas A., Loturco, Irineu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359010/
https://www.ncbi.nlm.nih.gov/pubmed/30577602
http://dx.doi.org/10.3390/sports7010002
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author Freitas, Tomás T.
Alcaraz, Pedro E.
Bishop, Chris
Calleja-González, Julio
Arruda, Ademir F. S.
Guerriero, Aristide
Reis, Valter P.
Pereira, Lucas A.
Loturco, Irineu
author_facet Freitas, Tomás T.
Alcaraz, Pedro E.
Bishop, Chris
Calleja-González, Julio
Arruda, Ademir F. S.
Guerriero, Aristide
Reis, Valter P.
Pereira, Lucas A.
Loturco, Irineu
author_sort Freitas, Tomás T.
collection PubMed
description The aim of this study was to investigate the change of direction (COD) ability and deficits of elite rugby union players, discriminating between position (backs and forwards), and between “faster and slower players”, in multiple COD tasks. Twenty-four male rugby union players from the Brazilian senior National team completed the following assessments: Squat and countermovement jumps; drop jump; standing long jump, horizontal triple jumps; 40-m linear sprint; Pro-agility, L-Drill, and Zig-zag COD tests; and squat 1-repetition maximum. The differences between backs and forwards and between faster and slower performers were examined using magnitude-based inferences. Backs were faster (in both linear and COD speed tests) and jumped higher than forwards. Moreover, they generated an inferior sprint momentum. No differences were found in COD deficit between playing positions. However, when dividing the sample by median split, faster players outperformed their slower counterparts in all power–speed variables and presented higher COD deficits. These results suggest that separating rugby players by playing position might not discriminate players with different COD skills and that the median split analysis is more sensitive to identifying these differences. Furthermore, the present data indicate that faster rugby players are less efficient at changing direction and tolerating higher approach velocities in COD maneuvers.
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spelling pubmed-63590102019-02-11 Change of Direction Deficit in National Team Rugby Union Players: Is There an Influence of Playing Position? Freitas, Tomás T. Alcaraz, Pedro E. Bishop, Chris Calleja-González, Julio Arruda, Ademir F. S. Guerriero, Aristide Reis, Valter P. Pereira, Lucas A. Loturco, Irineu Sports (Basel) Article The aim of this study was to investigate the change of direction (COD) ability and deficits of elite rugby union players, discriminating between position (backs and forwards), and between “faster and slower players”, in multiple COD tasks. Twenty-four male rugby union players from the Brazilian senior National team completed the following assessments: Squat and countermovement jumps; drop jump; standing long jump, horizontal triple jumps; 40-m linear sprint; Pro-agility, L-Drill, and Zig-zag COD tests; and squat 1-repetition maximum. The differences between backs and forwards and between faster and slower performers were examined using magnitude-based inferences. Backs were faster (in both linear and COD speed tests) and jumped higher than forwards. Moreover, they generated an inferior sprint momentum. No differences were found in COD deficit between playing positions. However, when dividing the sample by median split, faster players outperformed their slower counterparts in all power–speed variables and presented higher COD deficits. These results suggest that separating rugby players by playing position might not discriminate players with different COD skills and that the median split analysis is more sensitive to identifying these differences. Furthermore, the present data indicate that faster rugby players are less efficient at changing direction and tolerating higher approach velocities in COD maneuvers. MDPI 2018-12-21 /pmc/articles/PMC6359010/ /pubmed/30577602 http://dx.doi.org/10.3390/sports7010002 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Freitas, Tomás T.
Alcaraz, Pedro E.
Bishop, Chris
Calleja-González, Julio
Arruda, Ademir F. S.
Guerriero, Aristide
Reis, Valter P.
Pereira, Lucas A.
Loturco, Irineu
Change of Direction Deficit in National Team Rugby Union Players: Is There an Influence of Playing Position?
title Change of Direction Deficit in National Team Rugby Union Players: Is There an Influence of Playing Position?
title_full Change of Direction Deficit in National Team Rugby Union Players: Is There an Influence of Playing Position?
title_fullStr Change of Direction Deficit in National Team Rugby Union Players: Is There an Influence of Playing Position?
title_full_unstemmed Change of Direction Deficit in National Team Rugby Union Players: Is There an Influence of Playing Position?
title_short Change of Direction Deficit in National Team Rugby Union Players: Is There an Influence of Playing Position?
title_sort change of direction deficit in national team rugby union players: is there an influence of playing position?
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359010/
https://www.ncbi.nlm.nih.gov/pubmed/30577602
http://dx.doi.org/10.3390/sports7010002
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