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https://codas.org.br/article/doi/10.1590/2317-1782/20212021157en
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Immediate effect of different exercises in the vocal space of women with and without vocal nodules

Efeito imediato de diferentes exercícios no espaço vocálico de mulheres com e sem nódulos vocais

Fernanda Pereira França; Anna Alice Almeida; Leonardo Wanderley Lopes

http://dx.doi.org/10.1590/2317-1782/20212021157en CoDAS, vol.34, n5, e20210157, 2022
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Abstract

Purpose

To investigate the immediate effect of voiced tongue vibration (VSL), high-resistance straw in the air (CAR), and overarticulation (OA) on the vocal space of vocally healthy women (MVS) and with vocal nodules (MNV).

Methods

12 women participated in the MNV and 12 women in the MVS, allocated to perform the vocal exercises of VSL, CAR, and OA. Each participant performed only one of the three proposed exercises, for 5 minutes, preceded and followed by recording a sequence of vehicle sentences for extracting formants (F1 and F2) from the vowel segments [a, i, u]. The vowel space was analyzed through the differences between the measures of the formants of the vowels.

Results

we observed a reduction of F1 in the interval [a]-[i] and [i]-[u] and of F2 between the vowels [a]-[u] and [i]-[u] in the MVS, after performing the CAR. In MNV, we observed a reduction of F2 in the interval [a]-[i] after VSL. In the intergroup analysis, there were higher F1 values between the intervals of the vowels [a]-[i] and [i]-[u] in the MVS, before performing the CAR, and after exercise only in the interval [a]-[i]. A higher value of F1 and F2 was observed in the interval between the vowels [i]-[u] in the MNV after VSL.

Conclusion

The VSL exercise reduced the vowel space in MNV women. CAR reduced the vocal space of women in the MVS. The MNV had a smaller vowel space compared to the MVS before and after the CAR. We observed a reduction in the vowel space in the MNV compared to the MNV after the VSL exercise.

Keywords

Voice; Voice Disorders; Acoustic; Laryngeal Diseases; Voice Training

Resumo

Objetivo

Investigar o efeito imediato da vibração sonorizada de língua (VSL), do canudo de alta resistência no ar (CAR) e da sobrearticulação (SA) sobre o espaço vocálico de mulheres vocalmente saudáveis (MVS) e com nódulos vocais (MNV).

Método

Participaram 12 mulheres no MNV e 12 mulheres no MVS, alocadas para execução dos exercícios vocais de VSL, CAR e AS. Cada participante realizou apenas um dos três exercícios propostos, durante 5 minutos, antecedidos e sucedidos pela gravação de uma sequência de frases-veículo para extração dos formantes (F1 e F2) dos segmentos vocálicos [a, i, u]. O espaço vocálico foi analisado por meio das diferenças entre as medidas dos formantes das vogais.

Resultados

houve redução de F1 no intervalo [a]-[i] e [i]-[u] e de F2 entre as vogais [a]-[u] e [i]-[u] no MVS, após realização do CAR. No MNV, observou-se redução de F2 no intervalo [a]-[i] após VSL. Na análise intergrupo, houve maiores valores de F1 entre os intervalos das vogais [a]-[i] e [i]-[u] no MVS, antes da realização do CAR, e após exercício apenas no intervalo [a]-[i]. Observou-se maior valor de F1 e F2 no intervalo entre as vogais [i]-[u] no MNV após VSL.

Conclusão

O exercício de VSL diminuiu o espaço vocálico em mulheres do MNV. O CAR reduziu o espaço vocálico de mulheres do MVS. O MNV apresentou menor espaço vocálico em relação ao MVS, antes e após a realização do CAR. Houve redução do espaço vocálico no MNV em relação ao MNV após o exercício de VSL.

Palavras-chave

Voz; Distúrbios da Voz; Acústica; Doenças da laringe; Treinamento da Voz

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