Banca de DEFESA: LIVIA MARINA FERREIRA DA CUNHA
Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.DISCENTE : LIVIA MARINA FERREIRA DA CUNHA
DATA : 13/09/2019
HORA: 10:00
LOCAL: FACULDADE DE MEDICINA DA BAHIA
TÍTULO:
PHONATION IN COMMERCIAL STRAW IN TEACHERS' VOICE: A QUASI-EXPERIMENTAL STUDY
Introduction: Teachers are exposed to factors that can trigger or aggravate voice disorders in their work setting. Thus, they can be affected by Work-Related Voice Disorder (WRVD). WRVD is characterized by any form of vocal deviation that restricts or impedes worker performance, even in the absence of organic alterations in the larynx. Researches have shown high prevalence of voice disorder and withdrawal due to vocal alteration in this category, causing social and financial impacts to the country. Therefore, this problem emphasizes the importance of developing strategies that protect the voice of these workers. Purpose: To verify the effects of phonation in commercial straw on teachers’ voice. Methods: Quasi-experimental study, pre- and posttest design with a single group of subjects, blind to the evaluator with teachers from a secondary public school in the city of Salvador, Bahia. Teachers answered a questionnaire and were submitted to voice recording before and after a 4-week intervention with commercial straw phonation for approximately three minutes, in all shifts at the school. A multidimensional voice assessment was conducted considering the global severity grade (CAPE-V) for auditory-perceptual evaluation; f0, jitter, shimmer, noise, and GNE (Voxmetria) for acoustical analysis; screening index for voice disorder (SIVD) for self-reported evaluation. Pre- and posttest comparison was performed by the nonparametric Wilcoxon Signs test, considering p<0.05 as statistically significance. Results: Twenty-four teachers of both sexes (45.8% men, 54.2% women), 49.13 years old, 22.3 years of working time as a teacher, and 35.8 hours of teaching time per week have participated in this research. Pre- and posttest comparison showed a significant reduction in SIVD (p=0.03). In the other analyzes no significant results were found.Conclusion: Intervention with semi-occluded vocal tract exercise (SOVTE) in commercial straw with teachers demonstrated a reduction in self-reported vocal symptoms, which may be beneficial for their vocal health. Further studies should be conducted with a control group to verify the effects of SOVTE as a protective strategy of teachers’ voice.
PALAVRAS-CHAVES:
Voice disorders; Voice; Voice training; Teachers; Worker's health
PÁGINAS: 80
GRANDE ÁREA: Ciências da Saúde
ÁREA: Saúde Coletiva
SUBÁREA: Saúde Pública
RESUMO:
Introduction: Teachers are exposed to factors that can trigger or aggravate voice disorders in their work setting. Thus, they can be affected by Work-Related Voice Disorder (WRVD). WRVD is characterized by any form of vocal deviation that restricts or impedes worker performance, even in the absence of organic alterations in the larynx. Researches have shown a high prevalence of voice disorder and withdrawal due to vocal alteration in this category, causing social and financial impacts on the country. Therefore, this problem emphasizes the importance of developing strategies that protect the voice of these workers. Purpose: To verify the effects of phonation in commercial straw on teachers’ voice. Methods: Quasi-experimental study, pre- and posttest design with a single group of subjects, blind to the evaluator with teachers from a secondary public school in the city of Salvador, Bahia. Teachers answered a questionnaire and were submitted to voice recording before and after a 4-week intervention with commercial straw phonation for approximately three minutes, in all shifts at the school. A multidimensional voice assessment was conducted considering the global severity grade (CAPE-V) for auditory-perceptual evaluation; f0, jitter, shimmer, noise, and GNE (Voxmetria) for acoustical analysis; screening index for voice disorder (SIVD) for self-reported evaluation. Pre- and posttest comparison was performed by the nonparametric Wilcoxon Signs test, considering p<0.05 as statistically significant. Results: Twenty-four teachers of both sexes (45.8% men, 54.2% women), 49.13 years old, 22.3 years of working time as a teacher, and 35.8 hours of teaching time per week have participated in this research. Pre- and posttest comparison showed a significant reduction in SIVD (p=0.03). In the other analyzes, no significant results were found. Conclusion: Intervention with semi-occluded vocal tract exercise (SOVTE) in commercial straw with teachers demonstrated a reduction in self-reported vocal symptoms, which may be beneficial for their vocal health. Further studies should be conducted with a control group to verify the effects of SOVTE as a protective strategy of teachers’ voices.
MEMBROS DA BANCA:
Presidente - 1567757 - MARIA LUCIA VAZ MASSON
Interno - 1505100 - DENISE NUNES VIOLA
Externo à Instituição - LÉSLIE PICCOLOTTO FERREIRA - PUC - SP