Revista CEFAC
https://revistacefac.org.br/article/doi/10.1590/1982-0216/20232546623
Revista CEFAC
Original Articles

Vocal rehabilitation in singers with vocal complaints: a digital kymography analysis

Reabilitação vocal em cantoras com queixa vocal:  análise da videoquimografia digital

Ualisson Nogueira do Nascimento; Marco Aurélio Rocha Santos; Ana Cristina Côrtes Gama

http://dx.doi.org/10.1590/1982-0216/20232546623 Revista CEFAC, vol.25, n4, e6623, 2023
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Abstract

Purpose: to evaluate the effects of the Comprehensive Vocal Rehabilitation Program associated with the application of transcutaneous electrical nerve stimulation through digital kymography in singers with vocal complaints.

Methods: an experimental intrasubject comparative study in 24 singers, who underwent the rehabilitation program associated with transcutaneous electrical nerve stimulation. They were assessed with laryngeal high-speed videoendoscopy before and after vocal rehabilitation. The paired t-test and Wilcoxon test were used to compare the two assessments. The significance level was set at 5%.

Results: significant differences were found in the maximum opening, dominant amplitude of the opening variation and dominant frequency of the opening variation of the right vocal fold in the posterior glottic region, and in maximum opening, mean opening, dominant amplitude of the opening variation of the left vocal fold and dominant frequency of the opening variation of both vocal folds in the anterior glottic region.

Conclusion: the results showed that the Comprehensive Vocal Rehabilitation Program associated with transcutaneous electrical stimulation decreased the opening amplitude of the vocal fold, increased the vibration frequency, and improved glottal closure in the anterior and posterior glottic regions.

 

Keywords

Voice; Voice Disorders; Voice Training; Transcutaneous Electric Nerve Stimulation; Laryngoscopy; Kymography

Resumo

Objetivo: avaliar os efeitos do Programa Integral de Reabilitação Vocal associado à aplicação da estimulação elétrica nervosa transcutânea por meio da videoquimografia digital em cantoras com queixa vocal. 

Métodos: estudo experimental comparativo intrassujeitos com 24 cantoras, que realizaram o programa de reabilitação associado à estimulação elétrica nervosa transcutânea. A avaliação, por meio da videolaringoscopia de alta velocidade, foi realizada antes e após a reabilitação vocal. Os testes T pareado e de Wilcoxon foram utilizados para comparação das duas avaliações. Considerou-se o nível de significância de 5%. 

Resultados: diferenças significantes foram identificadas quanto aos parâmetros de abertura máxima, amplitude dominante de variação de abertura e frequência dominante de abertura da prega vocal direita na região posterior da glote, além dos parâmetros de abertura máxima, abertura média, amplitude dominante de variação de abertura da prega vocal esquerda e frequência dominante de abertura de ambas as pregas vocais na região anterior da glote. 

Conclusão: os resultados mostraram que o Programa Integral de Reabilitação Vocal associado à estimulação elétrica transcutânea promoveu uma diminuição da amplitude de abertura da prega vocal e aumento da frequência de vibração, além de um melhor fechamento glótico nas regiões anterior e posterior da glote. 

Palavras-chave

Voz; Distúrbios da Voz; Treinamento da Voz; Estimulação Elétrica Nervosa Transcutânea; Laringoscopia; Quimografia

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Submitted date:
07/03/2023

Accepted date:
10/16/2023

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