Do Different Semi-Occluded Voice Exercises Affect Vocal Fold Adduction Differently in Subjects Diagnosed with Hyperfunctional Dysphonia?

Guzmán, Marco; Mora, Carlos Alberto Calvache; Romero, Luis Alberto López; Muñoz, Daniel; Olavarria, Christian; Madrid, Sofia; Leiva, Miguel; Bortnem, Cori; Pino, Josué

doi:10.1159/000437353

Cited by 57 publications

(32 citation statements)

References 24 publications

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“…Similar findings were reported by Radolf et al [52] and Guzmán et al [54]. It seems that tube phonation into water produces a compensatory glottal adduction in response to a higher hydrostatic pressure [52, 54, 64]. From the present study, post hoc analysis for the experimental group revealed significant differences on CQEGG when comparing the pre-post 8 cm and the post 4 cm-post 8 cm conditions.…”

Section: Discussionsupporting

confidence: 91%

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Aerodynamic, Electroglottographic, and Acoustic Outcomes after Tube Phonation in Water in Elderly Subjects

Guzmán

Saldívar

Pérez

et al. 2018

Folia Phoniatr Logop

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Objective: The present study aimed at observing the influence of tube phonation into water on objective voice characteristics in elderly subjects. Methods: Thirty elderly subjects with presbyphonia were randomly assigned to one of two voice exercise groups: (1) voice exercises with water resistance therapy at 4 and 8 cm of water depth (experimental group), and (2) voice exercises with vowel [a:]. Aerodynamic, electroglottographic, and acoustic voice assessments were conducted before and after exercises. Results: The experimental group showed a significant increase in contact quotient, subglottic pressure (P_sub), glottal resistance, and sound pressure level (SPL) when comparing the pre-post 8 cm and the post 4 cm-post 8 cm conditions. No significant differences were found for the control group. Moreover, significant differences for all variables (except for glottal airflow) when comparing condition post (for the control group) and condition post 8 cm (for the experimental group) were found. Conclusion: Tube phonation into water might improve vocal function in the geriatric population. This semioccluded vocal tract exercise seems to promote an increase in P_sub and vocal fold adduction immediately after exercise. This in turn might cause an increase in SPL. The effect should become manifest when a deep level of submersion (e.g., 8 cm water) is used. Shallower submersion produced negligible or no effects.

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Section: Discussionsupporting

confidence: 91%

“…Guzmán et al [64] observed that during WRT (at 10 and 2 cm of water depth) CQEGG significantly increased, compared to other semioccluded exercises that did not involve water resistance. Similar findings were reported by Radolf et al [52] and Guzmán et al [54].…”

Section: Discussionmentioning

confidence: 99%

Aerodynamic, Electroglottographic, and Acoustic Outcomes after Tube Phonation in Water in Elderly Subjects

Guzmán

Saldívar

Pérez

et al. 2018

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“…Todos los sujetos aumentaron la sensación de voz resonante y manifestaron, perceptualmente, un nivel mayor de colocación anterior durante el habla y el canto. Se ha sustentado este efecto tras aplicar ejercicios que optimicen la aducción de los pliegues vocales, con lo que se reporta un mayor índice de economía vocal debido al mínimo estrés de impacto en la colisión de estos, con menor esfuerzo y mayor proyección vocal (35)(36)(37). Se ha demostrado la mayor efectividad vocal tras implementar tratamientos en pacientes o profesionales de la voz utilizando ejercicios con tracto vocal semiocluido.…”

Section: Discussionunclassified

“…Se ha demostrado la mayor efectividad vocal tras implementar tratamientos en pacientes o profesionales de la voz utilizando ejercicios con tracto vocal semiocluido. Principalmente, la fonación con tubos, mano sobre boca y vibración labial, mejoran la aducción de los pliegues vocales, aumentan la sensación de colocación anterior y desarrollan mayor impacto en la conciencia y apropiación del ejercicio (37)(38)(39)(40). Con la secuencia de ejercicios aplicada en el presente estudio se evidenció una mejoría notoria a corto y mediano plazo en el grupo de cantantes (tabla 2, figura 3); sin embargo, se recomienda llevar a cabo futuras investigaciones que ayuden a explorar el efecto de la secuencia en una muestra poblacional más grande, además, utilizando un grupo control con el fin de aplicar estadísticos de mayor impacto que permitan determinar el grado de significancia en todas las variables presentadas.…”

Section: Discussionunclassified

Efectividad del calentamiento vocal fisiológico para cantantes

Mora

2016

Rev. Cienc. Salud

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Introduction:To determine changes in the degree of adduction of the vocal folds and resonanciales features in singers, after the implementation of a sequence of physiological vocal warm. Materials and Methods: acoustic analyzes measurements and electroglottography were applied to 11 singers, making four phonatory tasks before and after implementation of a sequence of three exercises Vocal Tract Semioclued (hand over mouth, straw phonation and Y-Buzz), each with three phonatory tasks (phonation with comfortable tone and intensity, pitch bend with glissandos of third and fifth note of major scales, variation of vocal intensity with Messa di Voci strategy). Experimental study, with descriptive analysis and application of non-parametric Wilcoxon test cepstrum. Results: Positive changes to short and medium term in measures applied. All subjects increased the feeling of resonant voice, showed improvement in vocal quality singing voice with minimal impact stress of the vocal folds and greater projection, aspects reflected in the positive correlations between contact quotient, disturbance measures, ltas and cepstrum. Discussion: the physiological vocal warm is a tool that helps to improve and protect the working instrument of singers, acoustic energy in the vocal tract improved after the sequence of physiological vocal warm, observing an immediate and long-term effect.

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“…If vocal injury has occurred, voice therapy with oral semi-occlusions can be employed to rehabilitate the voice and establish healthy phonation practices with better vocal fold adduction. While lip trills, tongue trills, nasal consonants, and voiced fricative consonants are all used effectively for voice training and therapy 1–4 , the use of flow-resistant tubes is becoming increasingly popular because these semi-occlusions are controllable and repeatable due to specific tube dimensions.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Flow-resistant Tubes Used for Semi-occluded Vocal Tract Voice Training and Therapy

Smith

Titze

2017

Journal of Voice

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Objectives To characterize the pressure-flow relationship of tubes used for semi-occluded vocal tract voice training/therapy, as well as to answer these major questions: (1) What is the relative importance of tube length to tube diameter? (2) What is the range of oral pressures achieved with tubes at phonation flow rates? (3) Does mouth configuration behind the tubes matter? Methods Plastic tubes of various diameters and lengths were mounted in line with an upstream pipe, and the pressure drop across each tube was measured at stepwise increments in flow rate. Basic flow theory and modified flow theory equations were used to describe the pressure-flow relationship of the tubes based on diameter and length. Additionally, the upstream pipe diameter was varied to explore how mouth shape affects tube resistance. Results The modified equation provided an excellent prediction of the pressure-flow relationship across all tube sizes (6% error compared to the experimental data). Variation in upstream pipe diameter yielded up to 10% deviation in pressure for tube sizes typically used in voice training/therapy. Conclusions Using the presented equations, resistance can be characterized for any tube based on diameter, length, and flow rate. With regard to the original questions, we found that: (1) For commonly used tubes, diameter is the critical variable for governing flow resistance; (2) For phonation flow rates, a range of tube dimensions produced pressures between 0 and 7.0 kPa; (3) The mouth pressure behind the lips will vary slightly with different mouth shapes, but this effect can be considered relatively insignificant.

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Do Different Semi-Occluded Voice Exercises Affect Vocal Fold Adduction Differently in Subjects Diagnosed with Hyperfunctional Dysphonia?

Cited by 57 publications

References 24 publications

Aerodynamic, Electroglottographic, and Acoustic Outcomes after Tube Phonation in Water in Elderly Subjects

Aerodynamic, Electroglottographic, and Acoustic Outcomes after Tube Phonation in Water in Elderly Subjects

Efectividad del calentamiento vocal fisiológico para cantantes

Characterization of Flow-resistant Tubes Used for Semi-occluded Vocal Tract Voice Training and Therapy

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