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Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points

Tennis is an asymmetric sport characterized by a systematic repetition of specific movements that may cause disturbances in muscular strength, power, and torque. Thus, we assessed (i) the torque, power, ratio production, and bilateral asymmetries in the shoulder’s external and internal rotations at...

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Autores principales: Brito, André V., Carvalho, Diogo D., Fonseca, Pedro, Monteiro, Ana S., Fernandes, Aléxia, Fernández-Fernández, Jaime, Fernandes, Ricardo J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9737849/
https://www.ncbi.nlm.nih.gov/pubmed/36497932
http://dx.doi.org/10.3390/ijerph192315857
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author Brito, André V.
Carvalho, Diogo D.
Fonseca, Pedro
Monteiro, Ana S.
Fernandes, Aléxia
Fernández-Fernández, Jaime
Fernandes, Ricardo J.
author_facet Brito, André V.
Carvalho, Diogo D.
Fonseca, Pedro
Monteiro, Ana S.
Fernandes, Aléxia
Fernández-Fernández, Jaime
Fernandes, Ricardo J.
author_sort Brito, André V.
collection PubMed
description Tennis is an asymmetric sport characterized by a systematic repetition of specific movements that may cause disturbances in muscular strength, power, and torque. Thus, we assessed (i) the torque, power, ratio production, and bilateral asymmetries in the shoulder’s external and internal rotations at 90 and 180°/s angular velocities, and (ii) the point duration influence of the above-mentioned variables. Twenty competitive tennis players performed external and internal shoulder rotations; an isokinetic evaluation was conducted of the dominant and non-dominant upper limbs before and after five and ten forehands. A higher torque production in the shoulder’s internal rotations at 90 and 180°/s was observed for the dominant vs. non-dominant sides (e.g., 63.1 ± 15.6 vs. 45.9 ± 9.8% and 62.5 ± 17.3 vs. 44.0 ± 12.6% of peak torque/body mass, p < 0.05). The peak torque decreased only after ten forehands (38.3 ± 15.8 vs. 38.2 ± 15.8 and 39.3 ± 16.1 vs. 38.1 ± 15.6 Nm, respectively, p < 0.05), but without impacting speed or accuracy. Unilateral systematic actions of tennis players caused contralateral asymmetries, evidencing the importance of implementing compensatory training. The forehand kinematic assessment suggests that racket and wrist amplitude, as well as speed, are important success determinants in tennis.
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spelling pubmed-97378492022-12-11 Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points Brito, André V. Carvalho, Diogo D. Fonseca, Pedro Monteiro, Ana S. Fernandes, Aléxia Fernández-Fernández, Jaime Fernandes, Ricardo J. Int J Environ Res Public Health Article Tennis is an asymmetric sport characterized by a systematic repetition of specific movements that may cause disturbances in muscular strength, power, and torque. Thus, we assessed (i) the torque, power, ratio production, and bilateral asymmetries in the shoulder’s external and internal rotations at 90 and 180°/s angular velocities, and (ii) the point duration influence of the above-mentioned variables. Twenty competitive tennis players performed external and internal shoulder rotations; an isokinetic evaluation was conducted of the dominant and non-dominant upper limbs before and after five and ten forehands. A higher torque production in the shoulder’s internal rotations at 90 and 180°/s was observed for the dominant vs. non-dominant sides (e.g., 63.1 ± 15.6 vs. 45.9 ± 9.8% and 62.5 ± 17.3 vs. 44.0 ± 12.6% of peak torque/body mass, p < 0.05). The peak torque decreased only after ten forehands (38.3 ± 15.8 vs. 38.2 ± 15.8 and 39.3 ± 16.1 vs. 38.1 ± 15.6 Nm, respectively, p < 0.05), but without impacting speed or accuracy. Unilateral systematic actions of tennis players caused contralateral asymmetries, evidencing the importance of implementing compensatory training. The forehand kinematic assessment suggests that racket and wrist amplitude, as well as speed, are important success determinants in tennis. MDPI 2022-11-28 /pmc/articles/PMC9737849/ /pubmed/36497932 http://dx.doi.org/10.3390/ijerph192315857 Text en © 2022 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
Brito, André V.
Carvalho, Diogo D.
Fonseca, Pedro
Monteiro, Ana S.
Fernandes, Aléxia
Fernández-Fernández, Jaime
Fernandes, Ricardo J.
Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points
title Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points
title_full Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points
title_fullStr Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points
title_full_unstemmed Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points
title_short Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points
title_sort shoulder torque production and muscular balance after long and short tennis points
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9737849/
https://www.ncbi.nlm.nih.gov/pubmed/36497932
http://dx.doi.org/10.3390/ijerph192315857
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