Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/9278 |
Resumo: | The purpose of this study was to analyse the effects of a competitive swim season on the strength, balance and endurance of shoulder rotator cuff muscles in young swimmers. A repeated-measures design was used with three measurements performed during the swim season. A swimmers group (n = 20) of young males with no dry-land training and a sedentary group (n=16) of male students with the same characteristics (age, body mass, height and maturational state) were evaluated. In both groups, the peak torque of shoulder internal (IR) and external (ER) rotators was assessed during preseason, midseason (16 weeks), and postseason (32 weeks). Concentric action at 60º∙s-1 and 180º∙s-1 was measured using an isokinetic dynamometer. The ER/IR strength ratios and endurance ratios were also obtained. At 60º∙s-1, there were significant training effects in the IR strength and ER/IR ratio on both shoulders. This trend was the same throughout the competitive season. The same trend was present at 180º∙s-1 since the training effects are seen primarily in IR and ER/IR ratios. With respect to endurance ratios, within-group data were similar in ER and IR for both shoulders, with no significant differences between moments. However, between-group differences occurred mostly in the IR. Results suggest that a competitive swim season favours the increase of muscular imbalances in the shoulder rotators of young competitive swimmers, mainly due to increased levels of IR strength and endurance that are proportionally larger than those of their antagonists. A compensatory strength training program should be considered. |
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Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive seasonswimmingisokinetic strengthmuscle balanceshoulder rotatorsThe purpose of this study was to analyse the effects of a competitive swim season on the strength, balance and endurance of shoulder rotator cuff muscles in young swimmers. A repeated-measures design was used with three measurements performed during the swim season. A swimmers group (n = 20) of young males with no dry-land training and a sedentary group (n=16) of male students with the same characteristics (age, body mass, height and maturational state) were evaluated. In both groups, the peak torque of shoulder internal (IR) and external (ER) rotators was assessed during preseason, midseason (16 weeks), and postseason (32 weeks). Concentric action at 60º∙s-1 and 180º∙s-1 was measured using an isokinetic dynamometer. The ER/IR strength ratios and endurance ratios were also obtained. At 60º∙s-1, there were significant training effects in the IR strength and ER/IR ratio on both shoulders. This trend was the same throughout the competitive season. The same trend was present at 180º∙s-1 since the training effects are seen primarily in IR and ER/IR ratios. With respect to endurance ratios, within-group data were similar in ER and IR for both shoulders, with no significant differences between moments. However, between-group differences occurred mostly in the IR. Results suggest that a competitive swim season favours the increase of muscular imbalances in the shoulder rotators of young competitive swimmers, mainly due to increased levels of IR strength and endurance that are proportionally larger than those of their antagonists. A compensatory strength training program should be considered.2014-01-07T10:46:48Z2014-01-072013-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/9278http://hdl.handle.net/10174/9278eng1533-4287The Journal of Strength & Conditioning Researchnmpba@uevora.ptammr@uevora.ptptc@uevora.pttiago.barbosa@nie.edu.sgajsilva@utad.pt251Batalha, NunoRaimundo, ArmandoTomas-Carus, PabloBarbosa, TiagoSilva, Antónioinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-08T03:59:57ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season |
title |
Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season |
spellingShingle |
Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season Batalha, Nuno swimming isokinetic strength muscle balance shoulder rotators |
title_short |
Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season |
title_full |
Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season |
title_fullStr |
Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season |
title_full_unstemmed |
Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season |
title_sort |
Shoulder rotator cuff balance, strength and endurance in young swimmers during a competitive season |
author |
Batalha, Nuno |
author_facet |
Batalha, Nuno Raimundo, Armando Tomas-Carus, Pablo Barbosa, Tiago Silva, António |
author_role |
author |
author2 |
Raimundo, Armando Tomas-Carus, Pablo Barbosa, Tiago Silva, António |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Batalha, Nuno Raimundo, Armando Tomas-Carus, Pablo Barbosa, Tiago Silva, António |
dc.subject.por.fl_str_mv |
swimming isokinetic strength muscle balance shoulder rotators |
topic |
swimming isokinetic strength muscle balance shoulder rotators |
description |
The purpose of this study was to analyse the effects of a competitive swim season on the strength, balance and endurance of shoulder rotator cuff muscles in young swimmers. A repeated-measures design was used with three measurements performed during the swim season. A swimmers group (n = 20) of young males with no dry-land training and a sedentary group (n=16) of male students with the same characteristics (age, body mass, height and maturational state) were evaluated. In both groups, the peak torque of shoulder internal (IR) and external (ER) rotators was assessed during preseason, midseason (16 weeks), and postseason (32 weeks). Concentric action at 60º∙s-1 and 180º∙s-1 was measured using an isokinetic dynamometer. The ER/IR strength ratios and endurance ratios were also obtained. At 60º∙s-1, there were significant training effects in the IR strength and ER/IR ratio on both shoulders. This trend was the same throughout the competitive season. The same trend was present at 180º∙s-1 since the training effects are seen primarily in IR and ER/IR ratios. With respect to endurance ratios, within-group data were similar in ER and IR for both shoulders, with no significant differences between moments. However, between-group differences occurred mostly in the IR. Results suggest that a competitive swim season favours the increase of muscular imbalances in the shoulder rotators of young competitive swimmers, mainly due to increased levels of IR strength and endurance that are proportionally larger than those of their antagonists. A compensatory strength training program should be considered. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09-01T00:00:00Z 2014-01-07T10:46:48Z 2014-01-07 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/9278 http://hdl.handle.net/10174/9278 |
url |
http://hdl.handle.net/10174/9278 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1533-4287 The Journal of Strength & Conditioning Research nmpba@uevora.pt ammr@uevora.pt ptc@uevora.pt tiago.barbosa@nie.edu.sg ajsilva@utad.pt 251 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
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repository.mail.fl_str_mv |
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1777304588277252096 |