Effect of performance time of the high-pitched blowing vocal exercise in the voice of women. / Efeito do tempo de execução do exercício vocal sopro e som agudo na voz de mulheres.

PURPOSE: To analyze the results of the runtimes of one, three, five, and seven minutes of the high-pitched blowing vocal exercise in women without voice complaints and with dysphonia and vocal nodules. METHODS: This is an experimental study with a consecutive and convenience sample of 60 women divided into two groups: 30 participants with dysphonia caused by vocal fold nodules (study group - SG) and 30 participants without vocal complaints (control group - CG). All participants performed the high-pitched blowing vocal exercise for one, three, five, and seven minutes. Sustained vowels /a/ and counting from one to ten were recorded before and after each exercise runtime. The recordings were randomized and evaluated by comparison task by four speech-language pathologists using the parameters grade of vocal deviation, roughness, breathiness, asthenia, strain and instability (GRBASI). The acoustic parameters analyzed were fundamental frequency, jitter, shimmer, period perturbation quotient, amplitude perturbation quotient, and harmonics-to-noise ratio. After each vocal exercise runtime, the participants responded whether they had felt vocal discomfort using a visual analogue scale. RESULTS: Auditory-perceptual analysis in the SG showed improved overall severity of dysphonia and breathiness after three minutes and worsening of these acoustic parameters after seven minutes of exercise performance. Participants in the SG reported self-perception of vocal discomfort after seven minutes of exercise performance. CONCLUSION: The ideal prescription time for the high-pitched blowing vocal exercise in dysphonic women is three minutes; worsening of voice quality and perception of vocal discomfort occurs after seven minutes.

Efeito do tempo de execução do exercício vocal sopro e som agudo na voz de mulheres / Effect of performance time of the high-pitched blowing vocal exercise in the voice of women

RESUMO Objetivo Analisar o resultado dos tempos um, três, cinco e sete minutos de execução do exercício vocal sopro e som agudo, em mulheres com disfonia por nódulos vocais e em mulheres sem queixa de voz. Método Trata-se de um estudo experimental com amostra de conveniência consecutiva. Participaram 30 mulheres disfônicas, por nódulos em pregas vocais (GE), e 30 mulheres sem queixa vocal (GC). Todas executaram o exercício sopro e som agudo durante um, três, cinco e sete minutos. As vogais sustentadas /a/ e a contagem de um a dez foram registradas antes e após cada tempo de execução do exercício. As gravações foram randomizadas e avaliadas por tarefa de comparação por quatro fonoaudiólogos utilizando os parâmetros grau de desvio vocal, rugosidade, soprosidade, antenia, tensão e instabilidade (GRBASI). Para a análise acústica, foram obtidos os parâmetros de frequência fundamental, jitter, shimmer, o quociente de perturbação de frequência, quociente de perturbação de amplitude e proporção harmônico ruído. Depois de cada momento de realização do exercício vocal, as participantes responderam em uma escala visual analógica de desconforto vocal. Resultados A análise perceptivo-auditiva no GE demonstrou melhora do grau geral da disfonia e da soprosidade após três minutos e piora destes parâmetros auditivos após sete minutos de realização do exercício. Houve autopercepção do desconforto vocal após sete minutos de realização do exercício no GE. Conclusão O tempo ideal de prescrição do exercício vocal sopro e som agudo para o grupo das mulheres disfônicas foi de três minutos. O mesmo grupo, após sete minutos, apresentou piora na qualidade da voz e autorreferiu desconforto.

ABSTRACT Purpose To analyze the results of the runtimes of one, three, five, and seven minutes of the high-pitched blowing vocal exercise in women without voice complaints and with dysphonia and vocal nodules. Methods This is an experimental study with a consecutive and convenience sample of 60 women divided into two groups: 30 participants with dysphonia caused by vocal fold nodules (study group - SG) and 30 participants without vocal complaints (control group - CG). All participants performed the high-pitched blowing vocal exercise for one, three, five, and seven minutes. Sustained vowels /a/ and counting from one to ten were recorded before and after each exercise runtime. The recordings were randomized and evaluated by comparison task by four speech-language pathologists using the parameters grade of vocal deviation, roughness, breathiness, asthenia, strain and instability (GRBASI). The acoustic parameters analyzed were fundamental frequency, jitter, shimmer, period perturbation quotient, amplitude perturbation quotient, and harmonics-to-noise ratio. After each vocal exercise runtime, the participants responded whether they had felt vocal discomfort using a visual analogue scale. Results Auditory-perceptual analysis in the SG showed improved overall severity of dysphonia and breathiness after three minutes and worsening of these acoustic parameters after seven minutes of exercise performance. Participants in the SG reported self-perception of vocal discomfort after seven minutes of exercise performance. Conclusion The ideal prescription time for the high-pitched blowing vocal exercise in dysphonic women is three minutes; worsening of voice quality and perception of vocal discomfort occurs after seven minutes.