Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle

Detalhes bibliográficos
Autor(a) principal: Augusto, Denise DalAva
Data de Publicação: 2008
Outros Autores: Ventura, Paula Pinheiro, Nogueira, João Felipe de Souza, Brasileiro, Jamilson Simões
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista Brasileira de Cineantropometria & Desempenho Humano (Online)
Texto Completo: https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2008v10n2p155
Resumo: The Patellofemoral pain syndrome (PFPS) is described as an anterior or retropatellar knee pain in the absence of other associated diseases, and has often been associated with dysfunction of the vastus medialis oblique muscle (VMO). However, several studies have demonstrated the impossibility of selectively activating this muscle with exercises. The aim of the present study was to analyze the immediate effect of neuromuscular electrical stimulation of VMO muscle by means of monitoring the electromyographic activity of the vastus medialis oblique (VMO) and vastus lateralis (VL) muscles. Eighteen healthy women with a mean age of 23.2 years and mean BMI of 20 Kg/m2 were evaluated. The study protocol included electromyographic analysis of VMO and VL muscles, before and immediately after neuromuscular electrical stimulation of the VMO muscle. During the electromyographic analysis, the volunteers performed maximal voluntary isometric contraction in a 60° knee extension on an isokinetic dynamometer. “Russian current” apparatus was used for electrical stimulation. Results: The data analysis demonstrated a signifi cant increase in VMO activation intensity immediately after it had been electrically stimulated (p=0.0125), whereas VL activation intensity exhibited no signifi cant increase (p=0.924). Moreover, a significant increase in the VMO/VL ratio was also detected (p=0.048). In this study it was observed that electrical stimulation modifiedthe VMO/VL ratio, which suggests electrical stimulation has a benefi cial effect on VMO muscle strength.
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spelling Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscleEfeito imediato da estimulação elétrica neuromuscular seletiva na atividade eletromiográfica do músculo vasto medial oblíquoThe Patellofemoral pain syndrome (PFPS) is described as an anterior or retropatellar knee pain in the absence of other associated diseases, and has often been associated with dysfunction of the vastus medialis oblique muscle (VMO). However, several studies have demonstrated the impossibility of selectively activating this muscle with exercises. The aim of the present study was to analyze the immediate effect of neuromuscular electrical stimulation of VMO muscle by means of monitoring the electromyographic activity of the vastus medialis oblique (VMO) and vastus lateralis (VL) muscles. Eighteen healthy women with a mean age of 23.2 years and mean BMI of 20 Kg/m2 were evaluated. The study protocol included electromyographic analysis of VMO and VL muscles, before and immediately after neuromuscular electrical stimulation of the VMO muscle. During the electromyographic analysis, the volunteers performed maximal voluntary isometric contraction in a 60° knee extension on an isokinetic dynamometer. “Russian current” apparatus was used for electrical stimulation. Results: The data analysis demonstrated a signifi cant increase in VMO activation intensity immediately after it had been electrically stimulated (p=0.0125), whereas VL activation intensity exhibited no signifi cant increase (p=0.924). Moreover, a significant increase in the VMO/VL ratio was also detected (p=0.048). In this study it was observed that electrical stimulation modifiedthe VMO/VL ratio, which suggests electrical stimulation has a benefi cial effect on VMO muscle strength.A Síndrome da dor patelofemoral (SDPF) é descrita como dor anterior ou retro-patelar do joelho na ausência de outras patologias associadas, sendo freqüentemente associada à disfunção do Vasto Medial Oblíquo (VMO). Entretanto, diversos estudos têm demonstrado a impossibilidade de ativar seletivamente este músculo através de exercícios. O objetivo do presente estudo foi analisar o efeito imediato da estimulação elétrica neuromuscular (EENM) seletiva no músculo VMO por meio do comportamento eletromiográfico dos músculos VMO e vasto lateral (VL). Foram avaliadas 18 mulheres saudáveis, com idade média de 23,2 anos e IMC médio de 20 Kg/m2. Os procedimentos do estudo incluíram uma análise eletromiográfica dos músculos VMO e VL, antes e imediatamente após a EENM do músculo VMO. Durante a análise eletromiográfica, as voluntárias realizaram uma contração isométrica voluntária máxima durante a extensão do joelho a 60° em um dinamômetro isocinético. A estimulação elétrica foi realizada através da corrente Russa. A análise dos dados mostrou um aumento significativo na intensidade de ativação do músculo VMO imediatamente após a estimulação do mesmo (p=0,0125), enquanto que a intensidade de ativação do músculo VL, não mostrou aumento significativo (p=0,924). Além disso, verificou-se também um aumento significativo na relação VMO/VL (p=0,048). No presente estudo, observou-se uma modificação na relação VMO/VL após a EENM, sugerindo que a mesma tem um efeito favorável no fortalecimento seletivo do VMO.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2008-07-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares",Avaliado por ParesDescritivaapplication/pdfapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2008v10n2p15510.1590/1980-0037.2008v10n2p155Brazilian Journal of Kinanthropometry and Human Performance; Vol. 10 No. 2 (2008); 155-160Revista Brasileira de Cineantropometria e Desempenho Humano; v. 10 n. 2 (2008); 155-1601980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2008v10n2p155/3496https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2008v10n2p155/16583Augusto, Denise DalAvaVentura, Paula PinheiroNogueira, João Felipe de SouzaBrasileiro, Jamilson Simõesinfo:eu-repo/semantics/openAccess2022-11-21T14:13:44Zoai:periodicos.ufsc.br:article/4158Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2022-11-21T14:13:44Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle
Efeito imediato da estimulação elétrica neuromuscular seletiva na atividade eletromiográfica do músculo vasto medial oblíquo
title Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle
spellingShingle Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle
Augusto, Denise DalAva
title_short Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle
title_full Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle
title_fullStr Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle
title_full_unstemmed Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle
title_sort Immediate effect of selective neuromuscular electrical stimulation on the electromyographic activity of the vastus medialis oblique muscle
author Augusto, Denise DalAva
author_facet Augusto, Denise DalAva
Ventura, Paula Pinheiro
Nogueira, João Felipe de Souza
Brasileiro, Jamilson Simões
author_role author
author2 Ventura, Paula Pinheiro
Nogueira, João Felipe de Souza
Brasileiro, Jamilson Simões
author2_role author
author
author
dc.contributor.author.fl_str_mv Augusto, Denise DalAva
Ventura, Paula Pinheiro
Nogueira, João Felipe de Souza
Brasileiro, Jamilson Simões
description The Patellofemoral pain syndrome (PFPS) is described as an anterior or retropatellar knee pain in the absence of other associated diseases, and has often been associated with dysfunction of the vastus medialis oblique muscle (VMO). However, several studies have demonstrated the impossibility of selectively activating this muscle with exercises. The aim of the present study was to analyze the immediate effect of neuromuscular electrical stimulation of VMO muscle by means of monitoring the electromyographic activity of the vastus medialis oblique (VMO) and vastus lateralis (VL) muscles. Eighteen healthy women with a mean age of 23.2 years and mean BMI of 20 Kg/m2 were evaluated. The study protocol included electromyographic analysis of VMO and VL muscles, before and immediately after neuromuscular electrical stimulation of the VMO muscle. During the electromyographic analysis, the volunteers performed maximal voluntary isometric contraction in a 60° knee extension on an isokinetic dynamometer. “Russian current” apparatus was used for electrical stimulation. Results: The data analysis demonstrated a signifi cant increase in VMO activation intensity immediately after it had been electrically stimulated (p=0.0125), whereas VL activation intensity exhibited no signifi cant increase (p=0.924). Moreover, a significant increase in the VMO/VL ratio was also detected (p=0.048). In this study it was observed that electrical stimulation modifiedthe VMO/VL ratio, which suggests electrical stimulation has a benefi cial effect on VMO muscle strength.
publishDate 2008
dc.date.none.fl_str_mv 2008-07-18
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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Avaliado por Pares
Descritiva
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status_str publishedVersion
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10.1590/1980-0037.2008v10n2p155
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identifier_str_mv 10.1590/1980-0037.2008v10n2p155
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dc.relation.none.fl_str_mv https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2008v10n2p155/3496
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2008v10n2p155/16583
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dc.publisher.none.fl_str_mv Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil
publisher.none.fl_str_mv Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil
dc.source.none.fl_str_mv Brazilian Journal of Kinanthropometry and Human Performance; Vol. 10 No. 2 (2008); 155-160
Revista Brasileira de Cineantropometria e Desempenho Humano; v. 10 n. 2 (2008); 155-160
1980-0037
1415-8426
reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)
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instname_str Universidade Federal de Santa Catarina (UFSC)
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institution UFSC
reponame_str Revista Brasileira de Cineantropometria & Desempenho Humano (Online)
collection Revista Brasileira de Cineantropometria & Desempenho Humano (Online)
repository.name.fl_str_mv Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)
repository.mail.fl_str_mv rbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br
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