Lumbo-pelvic stability and electromyography of abdominal muscles in ballet dancers

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dc.contributor.authorDe Faria Negrão Filho, Rúben [UNESP]
dc.contributor.authorAlves Silva, L. [UNESP]
dc.contributor.authorLombardi Monteiro, T. [UNESP]
dc.contributor.authorAlves, Neri [UNESP]
dc.contributor.authorCesinando de Carvalho, A. [UNESP]
dc.contributor.authorMícolis de Azevedo, F. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:24:02Z
dc.date.available2014-05-27T11:24:02Z
dc.date.issued2009-11-01
dc.description.abstractEvaluating the ability to rectify and maintain lumbar adjustment can contribute toward the understanding of the behavior of abdominal muscles and their participation in the stability of pelvic muscles in dancers during the posterior pelvic tilt and double straight leg lowering tests. Nine healthy volunteers (male and female ballet dancers; age mean: 25.9 ±7.37 years) underwent maximal isometric voluntary contraction (MIVC), isometric voluntary contraction at 50% of MIVC, posterior pelvic tilt (PPT) and double straight leg lowering (DSLL) tests. The tests were carried out in a single day, with 3 repetitions each. During the tests, electromygraphic signals of the rectus abdominis, obliquus internus and obliquus externus were recorded. The signal acquisition system was made up of bipolar surface electrodes, electrogoniometer and an electromechanic device (pressure sensor), which were connected to a signal conditioner module. Root mean square values of each muscle during the DSLL and PPT were converted into percentage of activation of 50% MIVC. Lower back pressure was submitted to the same process. ANOVA with repeated measures was performed, with the level of significance set at p < 0.05. The results revealed that all dancers were able to maintain posterior pelvic tilt and there was trend toward greater activation of the bilateral obliquus internus muscle. In an attempt to keep the pelvic region stabilized during DSLL, there was a greater contribution from the obliquus externus muscle in relation to other abdominal muscles.en
dc.description.affiliationSão Paulo State University Sciences and Technology College Department of Physiotherapy, Rua Roberto Simonsen no 305, Presidente Prudente - SP, 19060-900
dc.description.affiliationScience and Technology College São Paulo State University
dc.description.affiliationDepartment of Physics, Chemistry and Biology Science and Technology College São Paulo State University
dc.description.affiliationHuman Movement Applied Physiotherapy Laboratory Science and Technology College São Paulo State University
dc.description.affiliationUnespSão Paulo State University Sciences and Technology College Department of Physiotherapy, Rua Roberto Simonsen no 305, Presidente Prudente - SP, 19060-900
dc.description.affiliationUnespScience and Technology College São Paulo State University
dc.description.affiliationUnespDepartment of Physics, Chemistry and Biology Science and Technology College São Paulo State University
dc.description.affiliationUnespHuman Movement Applied Physiotherapy Laboratory Science and Technology College São Paulo State University
dc.format.extent377-384
dc.identifier.citationElectromyography and Clinical Neurophysiology, v. 49, n. 8, p. 377-384, 2009.
dc.identifier.issn0301-150X
dc.identifier.lattes7607651111619269
dc.identifier.orcid0000-0001-8001-301X
dc.identifier.scopus2-s2.0-70949103771
dc.identifier.urihttp://hdl.handle.net/11449/71232
dc.language.isoeng
dc.relation.ispartofElectromyography and Clinical Neurophysiology
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAbdominal muscles
dc.subjectElectromyography
dc.subjectStability lumbar
dc.subjectabdominal wall musculature
dc.subjectadult
dc.subjectballet dancer
dc.subjectcontrolled study
dc.subjectelectromyography
dc.subjectfemale
dc.subjecthuman
dc.subjectmale
dc.subjectmuscle contraction
dc.subjectrectus abdominis muscle
dc.subjectAbdominal Muscles
dc.subjectAdolescent
dc.subjectAdult
dc.subjectDancing
dc.subjectFemale
dc.subjectHumans
dc.subjectIsometric Contraction
dc.subjectLeg
dc.subjectMale
dc.subjectMuscle, Skeletal
dc.subjectPelvis
dc.subjectPostural Balance
dc.subjectYoung Adult
dc.titleLumbo-pelvic stability and electromyography of abdominal muscles in ballet dancersen
dc.typeArtigo
unesp.author.lattes7607651111619269
unesp.author.lattes5919252907988514[5]
unesp.author.orcid0000-0001-8001-301X[4]
unesp.author.orcid0000-0002-3858-5740[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept

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