High-speed kymography identifies the immediate effects of voiced vibration in healthy vocal folds
Int. arch. otorhinolaryngol. (Impr.)
;
17(1): 74-79, Jan.-Mar. 2013. ilus, tab
Artículo
en Inglés
| LILACS
| ID: lil-662530
ABSTRACT
Introduction:
The effects of voiced vibration technique can be assessed by laryngeal imaging. Kymographic images derived from high-speed videoendoscopy allow actual visualization of vocal folds vibration.Purpose:
The aim of this study is to identify the immediate effects of the voiced vibration technique in healthy vocal folds using high-speed digital laryngeal imaging.Methods:
Samples were obtained from 15 healthy subjects with no history of voice disorders (6 men and 9 women aged 21 to 43 years). High-speed videoendoscopy recordings were performed before and after the voiced vibration technique. Kymographic images were obtained using high-speed videoendoscopy. The vocal folds were examined in their open and closed positions and the characteristics of the opening and closing phases were determined. A customize computational routine was used quantify these parameters. The closing, opening, and speed quotients were also calculated.Results:
In this study, women displayed statistically significant differences in opened phase (P= 0.05*), closed phase (P= 0.046*), and closing phase (P= 0.026*) phase characteristics. Men displayed the highest difference rate in opening time characteristics (P= 0.06). The closing and opening quotients for the female group showed significant differences (P= 0.029* and P= 0.049*, respectively). The speed quotient exhibited statistically significant differences in the male group (P= 0.048*).Conclusion:
The kymographic images indicated that the immediate effect of the voiced vibration technique was smooth contact in healthy vocal fold vibration...
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Índice:
LILACS (Américas)
Asunto principal:
Vibración
/
Voz
/
Entrenamiento de la Voz
/
Intensificación de Imagen Radiográfica
/
Quimografía
Tipo de estudio:
Estudio pronóstico
Límite:
Adulto
/
Femenino
/
Humanos
/
Masculino
Idioma:
Inglés
Revista:
Int. arch. otorhinolaryngol. (Impr.)
Asunto de la revista:
Otorrinolaringologia
Año:
2013
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Brasil
Institución/País de afiliación:
University Federal of São Carlos/BR
/
University of São Paulo/BR
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