Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1517-869220172306149449 http://hdl.handle.net/11449/175658 |
Resumo: | Introduction: Low-power laser therapy has among its aims to aid the recovery of biological tissues, attenuating the effects of muscle fatigue and contributing to the improvement of performance in athletes. Methodological aspects still limit the conclusions of the acute effect of laser therapy on muscular performance. Objective: To verify the acute effect of low-power therapeutic laser in the induced fatigue in biceps brachii of volleyball athletes. Methods: This was a randomized double-blind study, approved by Institutional Review Board of UNESP, Marília. Nineteen volleyball athletes of both sexes participated in this study. Electromyographic data were collected from the biceps brachii muscle in isometric exercise of the elbow flexion before and after the application of the therapeutic laser. A dumbbell with 75% of the force peak, obtained by a load cell, was used for the fatigue protocol. The volunteers then underwent laser (active or placebo) application on six points of the biceps brachii muscle. The EMG data were analyzed in the frequency domain using the Myosystem® software. The distribution of normality was verified by the Shapiro-Wilk test, and repeated measures ANOVA (split plot) was used to test the interaction between time and group. Results: No significant interaction between group and time was observed for any analyzes variables, indicating that the irradiated group did not show advantages over the placebo group. Conclusion: After the proposed fatigue protocol, a single low-power laser application was not sufficient to produce positive effects on strength performance and on the electromyographic signal of the biceps brachii muscle of volleyball athletes. |
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Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibolEfeito agudo do laser de baixa potência na fadiga do bíceps braquial de atletas de voleibolAcute effect of low-power laser in fatigue of biceps brachii of volleyball athletesElectromyographyMuscle fatiguePhototherapyVolleyballIntroduction: Low-power laser therapy has among its aims to aid the recovery of biological tissues, attenuating the effects of muscle fatigue and contributing to the improvement of performance in athletes. Methodological aspects still limit the conclusions of the acute effect of laser therapy on muscular performance. Objective: To verify the acute effect of low-power therapeutic laser in the induced fatigue in biceps brachii of volleyball athletes. Methods: This was a randomized double-blind study, approved by Institutional Review Board of UNESP, Marília. Nineteen volleyball athletes of both sexes participated in this study. Electromyographic data were collected from the biceps brachii muscle in isometric exercise of the elbow flexion before and after the application of the therapeutic laser. A dumbbell with 75% of the force peak, obtained by a load cell, was used for the fatigue protocol. The volunteers then underwent laser (active or placebo) application on six points of the biceps brachii muscle. The EMG data were analyzed in the frequency domain using the Myosystem® software. The distribution of normality was verified by the Shapiro-Wilk test, and repeated measures ANOVA (split plot) was used to test the interaction between time and group. Results: No significant interaction between group and time was observed for any analyzes variables, indicating that the irradiated group did not show advantages over the placebo group. Conclusion: After the proposed fatigue protocol, a single low-power laser application was not sufficient to produce positive effects on strength performance and on the electromyographic signal of the biceps brachii muscle of volleyball athletes.Departamento de Fisioterapia e Terapia Ocupacional Universidade Estadual Paulista Júlio de Mesquita Filho - UNESPDepartamento de Biociências Universidade Federal de São Paulo - UNIFESPUniversidade de Marília - UNIMARFaculdade de Educação Física e Fisioterapia Universidade Federal de Uberlândia - UFUDepartamento de Fisioterapia e Terapia Ocupacional Universidade Estadual Paulista Júlio de Mesquita Filho - UNESPUniversidade Estadual Paulista (Unesp)Universidade Federal de São Paulo (UNIFESP)Universidade de Marília - UNIMARUniversidade Federal de Uberlândia (UFU)Froio, Juliana Lôbo [UNESP]Renno, Ana Claudia MunizChagas, Eduardo Federighi Baiside Campos, Felipe Guilherme Leite [UNESP]Pucci, Renata Lumena Altruda [UNESP]Kishi, Marcos SeizoPedroni, Cristiane Rodrigues [UNESP]2018-12-11T17:16:56Z2018-12-11T17:16:56Z2017-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article431-435application/pdfhttp://dx.doi.org/10.1590/1517-869220172306149449Revista Brasileira de Medicina do Esporte, v. 23, n. 6, p. 431-435, 2017.1517-8692http://hdl.handle.net/11449/17565810.1590/1517-869220172306149449S1517-869220170006004312-s2.0-85038432408S1517-86922017000600431.pdf22529072346024970000-0001-6907-3345Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Medicina do Esporte0,185info:eu-repo/semantics/openAccess2023-11-02T06:07:47Zoai:repositorio.unesp.br:11449/175658Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-02T06:07:47Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol Efeito agudo do laser de baixa potência na fadiga do bíceps braquial de atletas de voleibol Acute effect of low-power laser in fatigue of biceps brachii of volleyball athletes |
title |
Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol |
spellingShingle |
Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol Froio, Juliana Lôbo [UNESP] Electromyography Muscle fatigue Phototherapy Volleyball |
title_short |
Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol |
title_full |
Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol |
title_fullStr |
Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol |
title_full_unstemmed |
Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol |
title_sort |
Efecto agudo del láser de baja potencia en la fatiga del bíceps braquial de atletas de voleibol |
author |
Froio, Juliana Lôbo [UNESP] |
author_facet |
Froio, Juliana Lôbo [UNESP] Renno, Ana Claudia Muniz Chagas, Eduardo Federighi Baisi de Campos, Felipe Guilherme Leite [UNESP] Pucci, Renata Lumena Altruda [UNESP] Kishi, Marcos Seizo Pedroni, Cristiane Rodrigues [UNESP] |
author_role |
author |
author2 |
Renno, Ana Claudia Muniz Chagas, Eduardo Federighi Baisi de Campos, Felipe Guilherme Leite [UNESP] Pucci, Renata Lumena Altruda [UNESP] Kishi, Marcos Seizo Pedroni, Cristiane Rodrigues [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de São Paulo (UNIFESP) Universidade de Marília - UNIMAR Universidade Federal de Uberlândia (UFU) |
dc.contributor.author.fl_str_mv |
Froio, Juliana Lôbo [UNESP] Renno, Ana Claudia Muniz Chagas, Eduardo Federighi Baisi de Campos, Felipe Guilherme Leite [UNESP] Pucci, Renata Lumena Altruda [UNESP] Kishi, Marcos Seizo Pedroni, Cristiane Rodrigues [UNESP] |
dc.subject.por.fl_str_mv |
Electromyography Muscle fatigue Phototherapy Volleyball |
topic |
Electromyography Muscle fatigue Phototherapy Volleyball |
description |
Introduction: Low-power laser therapy has among its aims to aid the recovery of biological tissues, attenuating the effects of muscle fatigue and contributing to the improvement of performance in athletes. Methodological aspects still limit the conclusions of the acute effect of laser therapy on muscular performance. Objective: To verify the acute effect of low-power therapeutic laser in the induced fatigue in biceps brachii of volleyball athletes. Methods: This was a randomized double-blind study, approved by Institutional Review Board of UNESP, Marília. Nineteen volleyball athletes of both sexes participated in this study. Electromyographic data were collected from the biceps brachii muscle in isometric exercise of the elbow flexion before and after the application of the therapeutic laser. A dumbbell with 75% of the force peak, obtained by a load cell, was used for the fatigue protocol. The volunteers then underwent laser (active or placebo) application on six points of the biceps brachii muscle. The EMG data were analyzed in the frequency domain using the Myosystem® software. The distribution of normality was verified by the Shapiro-Wilk test, and repeated measures ANOVA (split plot) was used to test the interaction between time and group. Results: No significant interaction between group and time was observed for any analyzes variables, indicating that the irradiated group did not show advantages over the placebo group. Conclusion: After the proposed fatigue protocol, a single low-power laser application was not sufficient to produce positive effects on strength performance and on the electromyographic signal of the biceps brachii muscle of volleyball athletes. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-01 2018-12-11T17:16:56Z 2018-12-11T17:16:56Z |
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://dx.doi.org/10.1590/1517-869220172306149449 Revista Brasileira de Medicina do Esporte, v. 23, n. 6, p. 431-435, 2017. 1517-8692 http://hdl.handle.net/11449/175658 10.1590/1517-869220172306149449 S1517-86922017000600431 2-s2.0-85038432408 S1517-86922017000600431.pdf 2252907234602497 0000-0001-6907-3345 |
url |
http://dx.doi.org/10.1590/1517-869220172306149449 http://hdl.handle.net/11449/175658 |
identifier_str_mv |
Revista Brasileira de Medicina do Esporte, v. 23, n. 6, p. 431-435, 2017. 1517-8692 10.1590/1517-869220172306149449 S1517-86922017000600431 2-s2.0-85038432408 S1517-86922017000600431.pdf 2252907234602497 0000-0001-6907-3345 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Medicina do Esporte 0,185 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
431-435 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1803046280508735488 |