Effects of positioning on cough peak flow and muscular electromyographic activation in duchenne muscular dystrophy

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dc.contributor.authorDourado Junior, Mário Emílio Teixeira
dc.contributor.authorMarques, Layana
dc.contributor.authorSantos, Ilsa Priscila
dc.contributor.authorMarcelino, Ana Aline
dc.contributor.authorFonseca, Jessica Danielle Medeiros da
dc.contributor.authorAliverti, Andrea
dc.contributor.authorSarmento, Antonio
dc.contributor.authorResqueti, Vanessa Regiane
dc.contributor.authorFregonezi, Guilherme Augusto de Freitas
dc.contributor.authorIDhttps://orcid.org/0000-0002-9462-2294pt_BR
dc.date.accessioned2023-07-26T20:50:35Z
dc.date.available2023-07-26T20:50:35Z
dc.date.issued2020
dc.description.resumoAdvanced stages of Duchenne muscular dystrophy (DMD) result in muscle weakness and the inability to generate an effective cough. Several factors influence the effectiveness of cough in patients with DMD. The aim of this study was to assess whether differences in positioning affect cough peak flow (CPF) and muscular electromyographic activation in subjects with DMD compared with paired healthy subjects. METHODS: Optoelectronic plethysmography and surface electromyography were used to assess chest wall volumes, chest wall inspiratory capacity, CPF, breathing pattern, and electromyographic activity of sternocleidomastoid, scalene, rectus abdominis, and external oblique muscles during inspiratory and expiratory cough phases in the supine position, supine position with headrest raised at 45 , and sitting with back support at 80 in 12 subjects with DMD and 12 healthy subjects. RESULTS: Subjects with DMD had lower CPF (P < .01) in comparison to control subjects in all positions; the DMD group also exhibited lower CPF (P 5 .045) in the supine position versus 80 . Moreover, the relative volume contributions of the rib cage and abdominal compartments to tidal volume modified significantly with posture. The electromyographic activity during inspiratory and expiratory cough phases was lower in subjects with DMD compared to healthy subjects for all evaluated muscles (P < .05), but no significant differences were observed with posture change. CONCLUSIONS: In subjects with DMD, posture influenced CPF and the relative contribution of the rib cage and abdominal compartments to tidal volume. However, muscular electromyographic activation was not influenced by posture in subjects with DMD and healthy subjects.pt_BR
dc.identifier.citationMARQUES, Layana; FREGONEZI, Guilherme Augusto de Freitas; SANTOS, Ilsa Priscila; MARCELINO, Ana Aline; FONSêCA, Jéssica Danielle Medeiros da; DOURADO-JðNIOR, Mario Emílio Teixeira; ALIVERTI, Andrea; SARMENTO, Antonio; RESQUETI, Vanessa Regiane. Effects of Positioning on Cough Peak Flow and Muscular Electromyographic Activation in Duchenne Muscular Dystrophy. Respiratory Care, [S.L.], v. 65, n. 11, p. 1668-1677, 16 jun. 2020. Daedalus Enterprises. http://dx.doi.org/10.4187/respcare.07426. Disponível em: https://rc.rcjournal.com/content/65/11/1668. Acesso em: 18 jul. 2023.pt_BR
dc.identifier.doihttps://doi.org/10.4187/respcare.07426
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/54215
dc.languageenpt_BR
dc.publisherRespiratory Carept_BR
dc.subjectduchenne muscular dystrophypt_BR
dc.subjectcoughpt_BR
dc.subjectplethysmographypt_BR
dc.subjectrespiratory musclespt_BR
dc.subjectelectromyographypt_BR
dc.titleEffects of positioning on cough peak flow and muscular electromyographic activation in duchenne muscular dystrophypt_BR
dc.typearticlept_BR

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