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https://codas.org.br/article/doi/10.1590/2317-1782/e20240056pt
CoDAS
Original Article

Análise do efeito imediato do exercício de oscilação oral de alta frequência sonorizada em indivíduos com e sem sintomas vocais

Analysis of the immediate effect of the high-frequency oral oscillation exercise on individuals with and without vocal symptoms

Miriã Isabela dos Santos Dantas; Ana Cristina Côrtes Gama; Lorena Luiza Costa Rosa Nogueira; Renata Maria Moreira Moraes Furlan

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Resumo

RESUMO: Objetivo: verificar os efeitos imediatos da oscilação oral de alta frequência sonorizada utilizando o dispositivo Shaker® Classic, nas medidas acústicas, perceptivo-auditivas e autopercepção vocal, em adultos com e sem sintomas vocais.

Método: participaram 50 indivíduos, distribuídos em quatro grupos - homens com sintomas vocais, homens sem sintomas vocais, mulheres com sintomas vocais e mulheres sem sintomas vocais. Os participantes preencheram a Escala de Sintomas Vocais, uma escala visual numérica quanto ao nível de desconforto vocal e foram submetidos à gravação da voz antes e após a execução do exercício testado, o qual consistiu em soprar o bocal do Shaker® - modelo Classic, ao mesmo tempo em que emitiam a vogal U, durante três minutos. As gravações foram submetidas à análise acústica e análise perceptivo-auditiva. Foram utilizados os testes T-pareado e de Wilcoxon, com nível de significância de 5%.

Resultados: após o exercício houve diminuição do jitter no grupo de homens com sintomas vocais e do shimmer no de homens sem sintomas vocais. Mulheres com sintomas vocais apresentaram aumento da frequência fundamental, da proporção harmônico-ruído, dos valores de CPP e CPPS e diminuição do jitter; mulheres sem sintomas vocais apresentaram aumento de GNE. A avaliação perceptivo-auditiva não indicou mudanças após a realização do exercício. Observou-se redução do desconforto vocal em todos os grupos, após o exercício.

Conclusão: o exercício de oscilação oral de alta frequência sonorizada, utilizando o Shaker®, foi capaz de promover melhora em parâmetros acústicos e diminuição de desconforto vocal autorreferido nos quatro grupos avaliados.

Palavras-chave

Voz, Qualidade da Voz, Acústica da Fala, Treinamento da Voz, Fonoaudiologia

Abstract

Purpose  to verify the immediate effects of high-frequency oral oscillation using the Classic Shaker®, on acoustic, perceptual-auditory and vocal self-perception measures, in adults with and without vocal complaints.

Methods  50 individuals were allocated into four groups - men with vocal symptoms, men without vocal symptoms, women with vocal symptoms and women without vocal symptoms. The participants completed the Vocal Symptoms Scale, the self-assessment of vocal discomfort, and were subjected to voice recording before and after performing the tested exercise, which consisted of blowing the Shaker® - Classic model - mouthpiece, while emitting the vowel U, for three minutes. The recordings were submitted to acoustic analysis and perceptual-auditory analysis. Paired T-test and Wilcoxon test were used, significance level of 5%.

Results  after the exercise, there was a decrease in jitter in the groups of men with symptoms and in shimmer in men without symptoms. Women with symptoms showed an increase in fundamental frequency, harmonic-to-noise ratio, CPP, and CPPS values and a decrease in jitter; women without symptoms showed an increase in GNE. The perceptual-auditory evaluation did not indicate changes after carrying out the exercise. A reduction in vocal discomfort was observed in all groups after the exercise.

Conclusion  The high-frequency oral oscillation exercise using the Shaker® was able to promote improvements in acoustic parameters and a reduction in self-reported vocal discomfort in the four groups evaluated.

Keywords

Voice; Vocal Quality; Speech Acoustics; Voice Training; Speech, Language and Hearing Sciences

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Submitted date:
03/05/2024

Accepted date:
07/17/2024

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