RESUMO
The objective of this study was to verify the immediate effect of the voiced tongue trill technique in ascending and descending glissandos on the voice range profile of choir members. A total of 25 sopranos, mezzo-sopranos, contraltos, tenors, and baritones participated in the study. They were choir members, aged 20 to 45 years, with no voice symptoms, and able to perform the voiced tongue trill technique. Their voice range profile was analyzed before and after performing the ascending and descending technique for 2 and 5 minutes. The maximum fundamental frequency values in the study groups increased after performing the ascending and descending technique for 2 minutes (P = 0.001) and 5 minutes (P = 0.003). The range in Hz increased after 2 minutes (P = 0.010) and 5 minutes (P = 0.050) of the ascending technique and after 2 minutes (P = 0.001) of the descending technique, and the minimum fundamental frequency mean value suffered interference from the type of technique (ascending/descending). The immediate effects of VTTT in glissandos on the VRP of choir members' considering the two factors: condition and time, in ascending and descending glissandos for 2 and 5 minutes increased the maximum frequency and the range in Hz of choristers. Regarding volume levels results, no difference was found in intensity after applying the technique.
RESUMO
ABSTRACT Purpose: to assess the self-reported voice-related quality of life of schoolchildren without voice complaints and correlate it to acoustic parameters of voice. Methods: the research population comprised 31 children, mean age 6.5 (±0.17) years. The children's perception of their voice-related quality of life was verified with the Pediatric Voice-Related Quality of Life Survey, which has 10 closed-ended questions and three domains. The acoustic parameters assessed were fundamental frequency, jitter, shimmer, glottal-to-noise excitation ratio, and noise rate, besides the phonatory deviation diagram, based on the analysis of the emission of the sustained vowel /ɛ/ for 5 seconds. Results: all the children obtained scores close to 100% in the three domains of the Pediatric Voice-Related Quality of Life Survey. As for the acoustic parameters, most of them presented abnormal values in the phonatory deviation diagram and in shimmer. There was a difference between girls and boys only in fundamental frequency. Conclusion: the pediatric self-reported voice-related quality of life of the children studied had a positive impact, despite the acoustic changes found in the voices. There was no correlation between the pediatric voice-related quality of life and the acoustic parameters in voice in the group studied.
RESUMO Objetivo: avaliar a qualidade de vida em voz pediátrica autorreferida em escolares, sem queixas vocais e correlacioná-la aos parâmetros acústicos vocais. Métodos: a população desta pesquisa foi constituída por 31 crianças, com média de idade de 6,5 (±0,17) anos. Para verificar a percepção das crianças sobre a qualidade de vida em voz, foi aplicado o protocolo Qualidade de Vida em Voz Pediátrico composto por dez questões fechadas e três domínios. Os parâmetros acústicos avaliados foram frequência fundamental, jitter, shimmer, glottal-to-noise excitation ratio e índice de ruído, além do diagrama de desvio fonatório, a partir da análise da emissão da vogal /ɛ/ sustentada por cinco segundos. Resultados: os três domínios do protocolo Qualidade de Vida em Voz Pediátrico apresentaram escores próximos a 100% para todas as crianças. Quanto aos parâmetros acústicos, a maioria apresentou valores fora da normalidade, no diagrama de desvio fonatório e nos valores de shimmer. Observou-se diferença entre as meninas e os meninos apenas na frequência fundamental. Conclusão: a qualidade de vida em voz pediátrica autorreferida, nas crianças estudadas, apresentou impacto positivo, a despeito das alterações acústicas vocais encontradas. Não houve correlação entre a qualidade de vida em voz pediátrica e os parâmetros acústicos vocais, no grupo estudado.
