Muscle fatigue assessment by mechanomyography during application of NMES protocol

dc.creatorFaller, L
dc.creatorNeto, GNN
dc.creatorButton, VLSN
dc.creatorNohama, P
dc.date2009
dc.dateSEP-OCT
dc.date2014-08-01T18:40:28Z
dc.date2015-11-26T17:57:34Z
dc.date2014-08-01T18:40:28Z
dc.date2015-11-26T17:57:34Z
dc.date.accessioned2018-03-29T00:41:07Z
dc.date.available2018-03-29T00:41:07Z
dc.identifierRevista Brasileira De Fisioterapia. Associacao Brasileira Pesquisa Pos-graduacao Fisioterapia-abrapg-ft, v. 13, n. 5, n. 422, n. 429, 2009.
dc.identifier1413-3555
dc.identifierWOS:000272044000009
dc.identifier10.1590/S1413-35552009005000057
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/82082
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/82082
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1291518
dc.descriptionBackground: Neuromuscular electrical stimulation (NMES) is a widely used technique for rehabilitation in physical therapy, however it causes muscle fatigue more rapidly than does voluntary contraction. In clinical practice, it becomes necessary to monitor muscle fatigue during NMES protocols to adjust the parameters of electrical current stimulation and, thus, increase stimulation time. Objectives: The aim of this study is to use mechanomyography (MMG) as a means of evaluating peripheral muscle fatigue during the execution of an NMES protocol. Methods: An MMG signal acquisition system and an experimental protocol were developed. During in vivo tests, 10 participants performed maximal voluntary contractions (MVCs) for knee extension. A maximization phase was conducted with dynamic contractions generated by NMES at 10% of MVC (100 Hz, 400 mu s) on the quadriceps muscle, and the main NMES protocol occurred at 30%, of MVC (50 Hz, 400 mu s). Simultaneously, MMG(RMS) (amplitude) and MMG(MPF) (frequency) signals of the rectus femoris and the knee extension torque were acquired. Results: The tendency line of the MMGRMS was descendant, indicating that MMGRMS correlates with torque amplitude. However, MMGMPF did not show a significant correlation with torque for the present NMES protocol. Conclusions: MMG is a technique that can be simultaneously applied to NMES because there is no electrical interference and it can be used during functional movements in the NMES-generated muscle contraction. Article registered in the Australian New Zealand Clinical Trials Registry (ANZCTR) under the number ACTRN12609000866202.
dc.description13
dc.description5
dc.description422
dc.description429
dc.languagept
dc.publisherAssociacao Brasileira Pesquisa Pos-graduacao Fisioterapia-abrapg-ft
dc.publisherSao Carlos Sp
dc.publisherBrasil
dc.relationRevista Brasileira De Fisioterapia
dc.relationRev. Bras. Fisioter.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectneuromuscular electrical stimulation
dc.subjectmuscle fatigue
dc.subjectmechanomyography
dc.subjectrectus femoris muscle
dc.subjectMean Power Frequency
dc.subjectQuadriceps Femoris
dc.subjectElectrical-stimulation
dc.subjectTorque Relationships
dc.subjectElectromyographic Responses
dc.subjectBiceps-brachii
dc.subjectSurface Emg
dc.subjectContractions
dc.subjectVoluntary
dc.subjectIntensity
dc.titleMuscle fatigue assessment by mechanomyography during application of NMES protocol
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución