Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFMT |
Texto Completo: | http://ri.ufmt.br/handle/1/4580 |
Resumo: | Mechanical vibration warm-up protocols may be able to promote neuromuscular changes that may contribute to jiu-jitsu acute muscle strength performance. Objective: To verify whether a warm-up performed with mechanical vibration will promote greater muscle activation and isometric pulling force performance compared to a warm-up performed without mechanical vibration. Methodology: The participants are experienced in jiu-jitsu. They performed three sessions, separated by 48 hours. In the first session, the volunteers were familiarized with the specific warm-up protocol, with and without mechanical vibration, and with the isometric pull test (PI). On the second and third visits, the volunteers performed the specific warm-up, four sets of 15 seconds performing to the isometric rowing exercise, and a 30-second interval between sets. This warm-up was executed in a moment without mechanical vibration (V00) and another moment with vibration at a frequency of 26Hz (V26). Four minutes after the end of the exercise, the PI test was conducted. During the warm-up and the test, the electrical activity (EMG) of the Biceps Brachii (BB) and Latissimo Dorsal (LD) muscles was captured. EMG was assessed using Root Mean Square (RMS) and Median Frequency (FMedian). Muscle strength was assessed using the variables Maximum Strength (FMax), Force Production Rate (TPF), Average Strength (FMED) and Fatigue Index (IF). EMG data was normalized from data collected in the PI test at the pre-warming moment. The absolute (DA) and relative (DR) delta of the muscle strength variables were evaluated. Test-T Student compared the DA and DR between situations V00 and V26. Anova Two-Way was used to compare the RMS and FMedian in the specific warm-up (AE) and in the PI test, between situations V00 and V26, and between pre and post moments. As well as, to compare muscle strength variables between situations V00 and V26 and between pre- and post-warm-up moments. In case of significant differences, the post-hoc test indicated by the software was applied. The significance level adopted was p<0.05. Results: DA and DR of FMAX (DA p = 0.05; DR p = 0.02) and FMED (DA p = 0.02; DR p = 0.02) were higher in situation V26. FMAX (p=0.002) and FMED (p=0.001) in the PI test interaction between situation and moment was presented. RMS of the LD muscle during warm-up was higher in V26 compared to V00 (p=0.045) and presented the main situation effect (p= 0.017). LD RMS in the PI test was lower in the V26 situation compared to V00 (p=0.008). Conclusion: Vibration warm-up increased the performance of FMAX and FMED with the reduction in the RMS of the LD. |
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Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsuLutas agarradasPuxarTaxa de produção de forçaForça máximaÍndice de fadigaCNPQ::CIENCIAS DA SAUDE::EDUCACAO FISICAGrapplingPullRate of force developmentMaximun strengthFatigue indexMechanical vibration warm-up protocols may be able to promote neuromuscular changes that may contribute to jiu-jitsu acute muscle strength performance. Objective: To verify whether a warm-up performed with mechanical vibration will promote greater muscle activation and isometric pulling force performance compared to a warm-up performed without mechanical vibration. Methodology: The participants are experienced in jiu-jitsu. They performed three sessions, separated by 48 hours. In the first session, the volunteers were familiarized with the specific warm-up protocol, with and without mechanical vibration, and with the isometric pull test (PI). On the second and third visits, the volunteers performed the specific warm-up, four sets of 15 seconds performing to the isometric rowing exercise, and a 30-second interval between sets. This warm-up was executed in a moment without mechanical vibration (V00) and another moment with vibration at a frequency of 26Hz (V26). Four minutes after the end of the exercise, the PI test was conducted. During the warm-up and the test, the electrical activity (EMG) of the Biceps Brachii (BB) and Latissimo Dorsal (LD) muscles was captured. EMG was assessed using Root Mean Square (RMS) and Median Frequency (FMedian). Muscle strength was assessed using the variables Maximum Strength (FMax), Force Production Rate (TPF), Average Strength (FMED) and Fatigue Index (IF). EMG data was normalized from data collected in the PI test at the pre-warming moment. The absolute (DA) and relative (DR) delta of the muscle strength variables were evaluated. Test-T Student compared the DA and DR between situations V00 and V26. Anova Two-Way was used to compare the RMS and FMedian in the specific warm-up (AE) and in the PI test, between situations V00 and V26, and between pre and post moments. As well as, to compare muscle strength variables between situations V00 and V26 and between pre- and post-warm-up moments. In case of significant differences, the post-hoc test indicated by the software was applied. The significance level adopted was p<0.05. Results: DA and DR of FMAX (DA p = 0.05; DR p = 0.02) and FMED (DA p = 0.02; DR p = 0.02) were higher in situation V26. FMAX (p=0.002) and FMED (p=0.001) in the PI test interaction between situation and moment was presented. RMS of the LD muscle during warm-up was higher in V26 compared to V00 (p=0.045) and presented the main situation effect (p= 0.017). LD RMS in the PI test was lower in the V26 situation compared to V00 (p=0.008). Conclusion: Vibration warm-up increased the performance of FMAX and FMED with the reduction in the RMS of the LD.Protocolos de aquecimento com vibração mecânica podem ser capazes de promover alterações neuromusculares que podem contribuir com a performance de força muscular aguda de atletas de jiu-jitsu. Objetivo: Verificar se um aquecimento realizado com vibração mecânica irá promover maior ativação muscular e desempenho de força de puxar isométrico comparado ao aquecimento realizado sem vibração mecânica. Metodologia: Participaram indivíduos experientes em jiu-jitsu. Eles realizaram 3 sessões, separadas por 48 horas. Na primeira sessão os voluntários se familiarizaram com o protocolo de aquecimento específico, com e sem vibração mecânica, e com o teste de puxar isométrico (PI). Na segunda e terceira visita, os voluntários executaram o aquecimento específico, 4 séries de 15 segundos executando o exercício remada isométrica e 30 segundos de intervalo entre séries. O aquecimento foi executado em um momento sem vibração mecânica (V00) e outro momento com vibração na frequência de 26Hz (V26). Após 4 minutos foi executado o teste PI. Durante o aquecimento e o teste, foi captada a atividade elétrica (EMG) dos músculos Bíceps Braquial (BB) e Latíssimo Dorsal (LD). A EMG foi avaliada através da Root Mean Square (RMS) e Frequência Mediana (FMediana). A força muscular foi avaliada através das variáveis Força Máxima (FMáx), Taxa de Produção de Força (TPF), Força Média (FMED) e Índice de Fadiga (IF). Os dados de EMG foram normalizados a partir dos dados coletados no teste PI no momento pré-aquecimento. Foi avaliado o delta absoluto (DA) e relativo (DR) das variáveis da força muscular. Test-T Student comparou o DA e DR entre as situações V00 e V26. Anova TwoWay foi utilizado para comparar a RMS e FMediana no aquecimento específico (AE) e no teste PI, entre as situações V00 e V26, e entre os momentos pré e pós e para comparar as variáveis da força muscular entre as situações V00 e V26 e entre os momentos pré e pós aquecimento. O nível de significância adotado foi p<0,05. Resultados: DA e DR de FMÁX (DA p= 0,05; DR p= 0,02) e FMED (DA p= 0,02; DR p= 0,02) foram maiores na situação V26. FMÁX (p=0,002) e FMED (p=0,001) no teste PI, apresentaram interação entre situação e momento. RMS do músculo LD durante o aquecimento foi maior em V26 comparado a V00 (p=0,045) e apresentou efeito principal de situação (p= 0,017). RMS do LD no teste PI foi menor na situação V26 comparado a V00 (p= 0,008). Conclusão: O aquecimento com vibração aumentou o desempenho de FMÁX e FMED com redução da RMS do LD.Universidade Federal de Mato GrossoBrasilFaculdade de Educação Física (FEF)UFMT CUC - CuiabáPrograma de Pós-Graduação em Educação FísicaFerreira, Jacielle CarolinaResende, Bruno Mezêncio Lealhttp://lattes.cnpq.br/9793275013451101http://lattes.cnpq.br/4097604888377977Ferreira, Jacielle Carolina069.733.896-78http://lattes.cnpq.br/4097604888377977Prado, Alexandre Konig Garcia337.732.278-76http://lattes.cnpq.br/8254272402502832069.733.896-78083.749.276-90Ribeiro, Rafael Soncin095.068.047-88http://lattes.cnpq.br/6668735804105063Coutinho, Victor Costa2023-08-03T14:27:47Z2021-08-222023-08-03T14:27:47Z2021-05-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisCOUTINHO, Victor Costa. Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu. 2021. 72 f. Dissertação (Mestrado em Educação Física) - Universidade Federal de Mato Grosso, Faculdade de Educação Física, Cuiabá, 2021.http://ri.ufmt.br/handle/1/4580porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMTinstname:Universidade Federal de Mato Grosso (UFMT)instacron:UFMT2023-08-07T07:04:25Zoai:localhost:1/4580Repositório InstitucionalPUBhttp://ri.ufmt.br/oai/requestjordanbiblio@gmail.comopendoar:2023-08-07T07:04:25Repositório Institucional da UFMT - Universidade Federal de Mato Grosso (UFMT)false |
dc.title.none.fl_str_mv |
Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu |
title |
Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu |
spellingShingle |
Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu Coutinho, Victor Costa Lutas agarradas Puxar Taxa de produção de força Força máxima Índice de fadiga CNPQ::CIENCIAS DA SAUDE::EDUCACAO FISICA Grappling Pull Rate of force development Maximun strength Fatigue index |
title_short |
Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu |
title_full |
Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu |
title_fullStr |
Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu |
title_full_unstemmed |
Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu |
title_sort |
Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu |
author |
Coutinho, Victor Costa |
author_facet |
Coutinho, Victor Costa |
author_role |
author |
dc.contributor.none.fl_str_mv |
Ferreira, Jacielle Carolina Resende, Bruno Mezêncio Leal http://lattes.cnpq.br/9793275013451101 http://lattes.cnpq.br/4097604888377977 Ferreira, Jacielle Carolina 069.733.896-78 http://lattes.cnpq.br/4097604888377977 Prado, Alexandre Konig Garcia 337.732.278-76 http://lattes.cnpq.br/8254272402502832 069.733.896-78 083.749.276-90 Ribeiro, Rafael Soncin 095.068.047-88 http://lattes.cnpq.br/6668735804105063 |
dc.contributor.author.fl_str_mv |
Coutinho, Victor Costa |
dc.subject.por.fl_str_mv |
Lutas agarradas Puxar Taxa de produção de força Força máxima Índice de fadiga CNPQ::CIENCIAS DA SAUDE::EDUCACAO FISICA Grappling Pull Rate of force development Maximun strength Fatigue index |
topic |
Lutas agarradas Puxar Taxa de produção de força Força máxima Índice de fadiga CNPQ::CIENCIAS DA SAUDE::EDUCACAO FISICA Grappling Pull Rate of force development Maximun strength Fatigue index |
description |
Mechanical vibration warm-up protocols may be able to promote neuromuscular changes that may contribute to jiu-jitsu acute muscle strength performance. Objective: To verify whether a warm-up performed with mechanical vibration will promote greater muscle activation and isometric pulling force performance compared to a warm-up performed without mechanical vibration. Methodology: The participants are experienced in jiu-jitsu. They performed three sessions, separated by 48 hours. In the first session, the volunteers were familiarized with the specific warm-up protocol, with and without mechanical vibration, and with the isometric pull test (PI). On the second and third visits, the volunteers performed the specific warm-up, four sets of 15 seconds performing to the isometric rowing exercise, and a 30-second interval between sets. This warm-up was executed in a moment without mechanical vibration (V00) and another moment with vibration at a frequency of 26Hz (V26). Four minutes after the end of the exercise, the PI test was conducted. During the warm-up and the test, the electrical activity (EMG) of the Biceps Brachii (BB) and Latissimo Dorsal (LD) muscles was captured. EMG was assessed using Root Mean Square (RMS) and Median Frequency (FMedian). Muscle strength was assessed using the variables Maximum Strength (FMax), Force Production Rate (TPF), Average Strength (FMED) and Fatigue Index (IF). EMG data was normalized from data collected in the PI test at the pre-warming moment. The absolute (DA) and relative (DR) delta of the muscle strength variables were evaluated. Test-T Student compared the DA and DR between situations V00 and V26. Anova Two-Way was used to compare the RMS and FMedian in the specific warm-up (AE) and in the PI test, between situations V00 and V26, and between pre and post moments. As well as, to compare muscle strength variables between situations V00 and V26 and between pre- and post-warm-up moments. In case of significant differences, the post-hoc test indicated by the software was applied. The significance level adopted was p<0.05. Results: DA and DR of FMAX (DA p = 0.05; DR p = 0.02) and FMED (DA p = 0.02; DR p = 0.02) were higher in situation V26. FMAX (p=0.002) and FMED (p=0.001) in the PI test interaction between situation and moment was presented. RMS of the LD muscle during warm-up was higher in V26 compared to V00 (p=0.045) and presented the main situation effect (p= 0.017). LD RMS in the PI test was lower in the V26 situation compared to V00 (p=0.008). Conclusion: Vibration warm-up increased the performance of FMAX and FMED with the reduction in the RMS of the LD. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-22 2021-05-31 2023-08-03T14:27:47Z 2023-08-03T14:27:47Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
COUTINHO, Victor Costa. Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu. 2021. 72 f. Dissertação (Mestrado em Educação Física) - Universidade Federal de Mato Grosso, Faculdade de Educação Física, Cuiabá, 2021. http://ri.ufmt.br/handle/1/4580 |
identifier_str_mv |
COUTINHO, Victor Costa. Efeito da vibração mecânica localizada sobre variáveis de força e eletromiografia de membros superiores de lutadores de jiu-jitsu. 2021. 72 f. Dissertação (Mestrado em Educação Física) - Universidade Federal de Mato Grosso, Faculdade de Educação Física, Cuiabá, 2021. |
url |
http://ri.ufmt.br/handle/1/4580 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Mato Grosso Brasil Faculdade de Educação Física (FEF) UFMT CUC - Cuiabá Programa de Pós-Graduação em Educação Física |
publisher.none.fl_str_mv |
Universidade Federal de Mato Grosso Brasil Faculdade de Educação Física (FEF) UFMT CUC - Cuiabá Programa de Pós-Graduação em Educação Física |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFMT instname:Universidade Federal de Mato Grosso (UFMT) instacron:UFMT |
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Universidade Federal de Mato Grosso (UFMT) |
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UFMT |
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UFMT |
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Repositório Institucional da UFMT |
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Repositório Institucional da UFMT |
repository.name.fl_str_mv |
Repositório Institucional da UFMT - Universidade Federal de Mato Grosso (UFMT) |
repository.mail.fl_str_mv |
jordanbiblio@gmail.com |
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1804648521753690112 |