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Influence of Physical and Technical Aspects on Change of Direction Performance of Rugby Players: An Exploratory Study

We examined the relationships between change of direction (COD) speed and deficit, and a series of speed- and power-related measurements in national team rugby union players and analyzed the influence of movement patterns on COD ability. Eleven male athletes completed the following physical assessme...

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Autores principales: Freitas, Tomás T., Alcaraz, Pedro E., Calleja-González, Julio, Arruda, Ademir F. S., Guerriero, Aristide, Mercer, Valter P., Pereira, Lucas A., Carpes, Felipe P., McGuigan, Michael R., Loturco, Irineu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706889/
https://www.ncbi.nlm.nih.gov/pubmed/34948999
http://dx.doi.org/10.3390/ijerph182413390
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author Freitas, Tomás T.
Alcaraz, Pedro E.
Calleja-González, Julio
Arruda, Ademir F. S.
Guerriero, Aristide
Mercer, Valter P.
Pereira, Lucas A.
Carpes, Felipe P.
McGuigan, Michael R.
Loturco, Irineu
author_facet Freitas, Tomás T.
Alcaraz, Pedro E.
Calleja-González, Julio
Arruda, Ademir F. S.
Guerriero, Aristide
Mercer, Valter P.
Pereira, Lucas A.
Carpes, Felipe P.
McGuigan, Michael R.
Loturco, Irineu
author_sort Freitas, Tomás T.
collection PubMed
description We examined the relationships between change of direction (COD) speed and deficit, and a series of speed- and power-related measurements in national team rugby union players and analyzed the influence of movement patterns on COD ability. Eleven male athletes completed the following physical assessments on different days: day 1—anthropometric measurements, and lower-body kinematic parameters (assessed with eight inertial sensors) and completion time in COD tests (pro-agility, 45° cutting maneuver (CUT), and “L” (L-Drill)); day 2—bilateral and unilateral squat and countermovement jumps, 40 m linear sprint, and bar-power output in the jump squat and half-squat exercises. Pearson’s product–moment correlations were performed to determine the relationships between COD velocities, COD deficits, and the speed–power variables. Differences between players with higher and lower COD deficits were examined using magnitude-based inferences. Results showed that (1) greater sprint momentum was associated with higher COD deficits, particularly in drills with sharper angles and multiple directional changes (L-drill and pro-agility); (2) higher unilateral jump heights were associated with greater COD deficits in the pro-agility and L-drill but not in the CUT; (3) faster athletes were less efficient at changing direction and presented greater trunk and knee flexion angles during COD maneuvers, probably as a consequence of higher inertia.
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spelling pubmed-87068892021-12-25 Influence of Physical and Technical Aspects on Change of Direction Performance of Rugby Players: An Exploratory Study Freitas, Tomás T. Alcaraz, Pedro E. Calleja-González, Julio Arruda, Ademir F. S. Guerriero, Aristide Mercer, Valter P. Pereira, Lucas A. Carpes, Felipe P. McGuigan, Michael R. Loturco, Irineu Int J Environ Res Public Health Article We examined the relationships between change of direction (COD) speed and deficit, and a series of speed- and power-related measurements in national team rugby union players and analyzed the influence of movement patterns on COD ability. Eleven male athletes completed the following physical assessments on different days: day 1—anthropometric measurements, and lower-body kinematic parameters (assessed with eight inertial sensors) and completion time in COD tests (pro-agility, 45° cutting maneuver (CUT), and “L” (L-Drill)); day 2—bilateral and unilateral squat and countermovement jumps, 40 m linear sprint, and bar-power output in the jump squat and half-squat exercises. Pearson’s product–moment correlations were performed to determine the relationships between COD velocities, COD deficits, and the speed–power variables. Differences between players with higher and lower COD deficits were examined using magnitude-based inferences. Results showed that (1) greater sprint momentum was associated with higher COD deficits, particularly in drills with sharper angles and multiple directional changes (L-drill and pro-agility); (2) higher unilateral jump heights were associated with greater COD deficits in the pro-agility and L-drill but not in the CUT; (3) faster athletes were less efficient at changing direction and presented greater trunk and knee flexion angles during COD maneuvers, probably as a consequence of higher inertia. MDPI 2021-12-20 /pmc/articles/PMC8706889/ /pubmed/34948999 http://dx.doi.org/10.3390/ijerph182413390 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Freitas, Tomás T.
Alcaraz, Pedro E.
Calleja-González, Julio
Arruda, Ademir F. S.
Guerriero, Aristide
Mercer, Valter P.
Pereira, Lucas A.
Carpes, Felipe P.
McGuigan, Michael R.
Loturco, Irineu
Influence of Physical and Technical Aspects on Change of Direction Performance of Rugby Players: An Exploratory Study
title Influence of Physical and Technical Aspects on Change of Direction Performance of Rugby Players: An Exploratory Study
title_full Influence of Physical and Technical Aspects on Change of Direction Performance of Rugby Players: An Exploratory Study
title_fullStr Influence of Physical and Technical Aspects on Change of Direction Performance of Rugby Players: An Exploratory Study
title_full_unstemmed Influence of Physical and Technical Aspects on Change of Direction Performance of Rugby Players: An Exploratory Study
title_short Influence of Physical and Technical Aspects on Change of Direction Performance of Rugby Players: An Exploratory Study
title_sort influence of physical and technical aspects on change of direction performance of rugby players: an exploratory study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706889/
https://www.ncbi.nlm.nih.gov/pubmed/34948999
http://dx.doi.org/10.3390/ijerph182413390
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