Surface electromyographic biofeedback for behavioral dysphonia in adult people: a systematic review

Abstract

Purpose To review systematically the literature and to analyze the effectiveness of surface electromyographic biofeedback in the rehabilitation of adults with behavioral dysphonia. Research strategies Two authors performed an independent search in the following databases: Clinical Trials, Cochrane Library, Embase, LILACS, PubMed, and Web of Science. A specific search strategy was developed for each database. Selection criteria The review included studies that examined the effectiveness of surface electromyographic biofeedback compared to other direct vocal therapy intervention in adults with behavioral dysphonia. There were no restrictions in regard to language or date of publication. Data analysis Analysis of the risk of bias, heterogeneity, quantitative and qualitative data, sensitivity, subgroups, and publication bias. Results 51 studies were identified, but only two cohort studies remained as prospects for analysis. The studies showed 100% uncertain risk of selection, performance, and detection bias. There was a high degree of clinical heterogeneity. The descriptive analysis showed a reduction in muscle electrical activity and improvement in vocal self-assessment using electromyographic biofeedback; however, it was not possible to calculate the effect size of the interventions. The present study was limited by the fact that it was unable to show a consensus for the majority of data analyzed. Conclusion The available literature does not support a conclusive finding about the effectiveness of surface electromyographic biofeedback compared to other direct interventions used in the rehabilitation of adults with behavioral dysphonia. The studies analyzed vary widely in their clinical procedures and methodology, making it impossible to determine the procedure's effectiveness.

Sensores no treinamento dos músculos estabilizadores da coluna vertebral de indivíduos com lombalgia e/ou protrusão discal lombar: uma revisão

“…Dessa forma o biofeedback é um instrumento valioso na avaliação e diagnóstico da atividade elétrica muscular nas terapias físicas e ocupacionais e auxiliando no tratamento de diversas condições patológicas musculares e neuromusculares (Amadio, 2000;Duarte-Moreira et al, 2018;Ribeiro et al, 2018). É importante destacar que o biofeedback eletromiográfico foi considerado eficaz no tratamento da dor crônica lombar; os resultados de um estudo mostraram redução da dor, menor percepção da desabilidade, aumento da capacidade de tolerância à dor e melhora da depressão (Newton-John et al, 1995).…”

Biofeedback electromiográfico y electroglotográfico aplicado a la terapia vocal: una revisión sistemática

“…Esta, quizás, sería la mayor ventaja del feedback electromiográfico y electroglotográfico en la intervención logopédica, puesto que ayudaría a los pacientes con trastorno vocal, especialmente en los cuadros de disfonías que cursan con tensión muscular, a adoptar ecológicamente y sin una instrucción explícita una correcta (o mejor) coordinación fonomuscular en unas condiciones óptimas para provocar cambios permanentes en la función fonatoria; por esta razón hoy se entiende que el uso del biofeedback EMGs o EGG puede ser una técnica prometedora en el tratamiento de las disfonías (Allen, 2007). Sin embargo, no hay un consenso sobre el número de aplicaciones, la duración, el tipo de actividad y la frecuencia de uso de este instrumento, por lo que todavía hoy resulta difícil aplicarlo en el ámbito clínico (Ribeiro, Vitor, Honório, Brasolotto y Silverio, 2018).…”