Atividade eletromiográfica dos músculos supra-hioideos e orbicular da boca no exercício expiratório com diferentes dispositivos
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2017-04-26
Autores
Pazzotti, Andreia Cristina [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
Introdução: As propostas terapêuticas para disfagia orofaríngea incluem ampla variedade de técnicas. São frequentes as adaptações na consistência e no volume do alimento, manobras posturais de cabeça e voluntárias de deglutição e, recentemente, treino com exercício expiratório. Estudos anteriores mostraram o efeito do exercício expiratório em parte da musculatura envolvida na deglutição com consequente aumento na elevação da laringe, sugerindo impacto na biomecânica da deglutição. Objetivo: comparar a atividade eletromiográfica dos músculos supra-hioideos e músculo orbicular da boca durante o exercício expiratório com diferentes dispositivos. Método: estudo clínico transversal observacional prospectivo. Participaram deste estudo 10 adultos jovens saudáveis, seis do gênero feminino e quatro masculino, com faixa etária de 20 a 39 anos (média de idade de 33 anos). O exercício expiratório foi realizado com três dispositivos diferentes (Respiron®, canudo e Expiratory Muscle Strenght Trainning - EMST) mediante randomização. A atividade muscular dos músculos supra-hioideos e músculo orbicular da boca foi avaliada por meio de eletromiografia de superfície. Os achados eletromiográficos foram registrados durante o exercício expiratório e comparados entre os dispositivos por meio do teste estatístico ANOVA One Way. Resultados: Foi possível observar que o exercício expiratório com os dispositivos estudados ativou os músculos avaliados sem diferença estatística significante (p<0,05). Conclusão: Os diferentes dispositivos utilizados para o exercício expiratório ativaram igualmente os músculos supra-hiodeos e músculo orbicular da boca.
Introduction: Therapeutic proposals for oropharyngeal dysphagia include a wide variety of techniques. Adjustments in food consistency and volume, postural head maneuvers and voluntary swallowing, and, recently, training with expiratory exercise are frequent. Previous studies have shown the effect of expiratory exercise on part of the musculature involved in swallowing with laryngeal elevation and suggesting an impact on the biomechanics of swallowing. Purpose: To compare the electromyographic activity of the suprahyoid and upper orbicularis oris muscle during expiratory exercise with different devices. Method: Prospective observational cross-sectional clinical study. Ten healthy young adults, six females and four males, aged 20-39 years (mean age 33 years) participated in this study. The expiratory exercise was performed with three different devices (Respiron®, tube, and Expiratory Muscle Strength Trainning - EMST) by randomization. The muscular activity of the suprahyoid muscles and orbicularis muscle of the mouth was evaluated by means of surface electromyography. The electromyographic findings were recorded during the expiratory exercise and compared between the devices by means of the ANOVA One Way statistical test. Results: It was possible to observe that the proposed exercises activated the evaluated muscles and there was no significant difference (p <0.05) between the electromyographic activities recorded during the use of the different devices. Conclusion: The different devices used for expiratory exercise also activate the suprahyoid muscles and orbicularis oris muscle.
Introduction: Therapeutic proposals for oropharyngeal dysphagia include a wide variety of techniques. Adjustments in food consistency and volume, postural head maneuvers and voluntary swallowing, and, recently, training with expiratory exercise are frequent. Previous studies have shown the effect of expiratory exercise on part of the musculature involved in swallowing with laryngeal elevation and suggesting an impact on the biomechanics of swallowing. Purpose: To compare the electromyographic activity of the suprahyoid and upper orbicularis oris muscle during expiratory exercise with different devices. Method: Prospective observational cross-sectional clinical study. Ten healthy young adults, six females and four males, aged 20-39 years (mean age 33 years) participated in this study. The expiratory exercise was performed with three different devices (Respiron®, tube, and Expiratory Muscle Strength Trainning - EMST) by randomization. The muscular activity of the suprahyoid muscles and orbicularis muscle of the mouth was evaluated by means of surface electromyography. The electromyographic findings were recorded during the expiratory exercise and compared between the devices by means of the ANOVA One Way statistical test. Results: It was possible to observe that the proposed exercises activated the evaluated muscles and there was no significant difference (p <0.05) between the electromyographic activities recorded during the use of the different devices. Conclusion: The different devices used for expiratory exercise also activate the suprahyoid muscles and orbicularis oris muscle.
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Palavras-chave
Transtorno de deglutição, Exercícios respiratórios, Eletromiografia, Reabilitação