Laryngeal and Pharyngeal Activity During Semioccluded Vocal Tract Postures in Subjects Diagnosed With Hyperfunctional Dysphonia

Guzmán, Marco; Castro, Christian; Testart, Alba; Muñoz, Daniel; Gerhard, Julia

doi:10.1016/j.jvoice.2013.05.007

Cited by 83 publications

(41 citation statements)

References 34 publications

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“…1, 22, 23, 24 However, the supraglottal measurements obtained in this study failed to show an increase when oppositional airflow was introduced, except for when the diameter of the outlet was constricted to 6.5 mm. Since this condition subjects the vocal tract to the maximum constriction of this study, this increase in supraglottal pressure is expected.…”

Section: Discussioncontrasting

confidence: 62%

Validation and Evaluation of the Effects of Semi-Occluded Face Mask Straw Phonation Therapy Methods on Aerodynamic Parameters in Comparison to Traditional Methods

et al. 2017

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Objectives/Hypothesis Traditional semi-occluded vocal tract (SOVT) therapies have the benefit of improving vocal economy but, do not allow for connected speech during rehabilitation. In this study, we introduce a semi-occluded face mask (SOFM) as an improvement upon current methods. This novel technique allows for normal speech production, and will make the transition to everyday speech more natural. We hypothesize that use of a SOFM will lead to the same gains in vocal economy seen in traditional methods. Study Design Repeated measures excised canine larynx bench experiment with each larynx subject to controls and a randomized series of experimental conditions. Methods Aerodynamic data were collected for 30 excised canine larynges. The larynges were subjected to conditions including a control, two tube extensions (15 and 30 cm), and two tube diameters (6.5 and 17 mm) both with and without the SOFM. Results were compared between groups and between conditions within each group. Results No significant differences were found between the phonation threshold pressure (PTP) and phonation threshold flow (PTF) measurements obtained with or without the SOFM throughout all extension and constriction levels. Significant differences in PTP and PTF were observed when varying the tube diameter while the same comparison for varying the tube length at least trended towards significance. Conclusions This study suggests that a SOFM can be used to elicit the same gains in vocal economy as what has been seen with traditional SOVT methods. Future studies should test this novel technique in human subjects to validate its use in a clinical setting.

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Section: Discussioncontrasting

confidence: 62%

Validation and Evaluation of the Effects of Semi-Occluded Face Mask Straw Phonation Therapy Methods on Aerodynamic Parameters in Comparison to Traditional Methods

et al. 2017

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“…47,48 This effect could be related to changes promoted by these exercises in the vocal tract, such as a lowered laryngeal position and an enlargement of the resonance cavities, thus producing strong somatosensitive biofeedback. 35,49 The main limitations of the present study were the small number of recruited singers and the lack of medium-and longterm analysis. Future research should include larger number of singers (both classical and contemporary commercial singers) and long-term efficacy analysis.…”

Section: Article In Pressmentioning

confidence: 90%

Voice Quality After a Semi-Occluded Vocal Tract Exercise With a Ventilation Mask in Contemporary Commercial Singers: Acoustic Analysis and Self-Assessments

et al. 2017

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“…Guzman et al also observed that SOVT exercises ‘produced a lower [vertical laryngeal position], narrower aryepiglottic opening, and a wider pharynx than resting position’ in 20 subjects with hyperfunctional dysphonia (16), while Laukkanen et al noted an increase in thyroarytenoid activity relative to cricothryroid activity during and following SOVT exercises (17). …”

Section: Introductionmentioning

confidence: 99%

Intraoral pressures produced by thirteen semi-occluded vocal tract gestures

Maxfield

Titze

Hunter

et al. 2014

Logopedics Phoniatrics Vocology

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The use of semi-occluded vocal tract (SOVT) exercises as habilitative and rehabilitative tools has grown substantially in the past two decades. As the use or these exercises has grown, so too has the number of variations of the phonatory gestures used to create oral semi-occlusions. While much of the research on SOVT exercises to this point has been conducted using straw phonation, there has been little discussion or investigation regarding how other phonatory gestures that are considered to be SOVT compare to one another. The current study sought to measure the intraoral pressure produced by 13 phonatory gestures generally thought of as oral semi-occlusions. Twenty subjects (10 male, 10 female) produced three tokens of each gesture, and intraoral pressure was recorded via a thin, flexible-cannula pressure transducer. Pressures ranged between 0.1 and 1.0 kPa, but varied significantly between gestures and between subjects.

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Laryngeal and Pharyngeal Activity During Semioccluded Vocal Tract Postures in Subjects Diagnosed With Hyperfunctional Dysphonia

Cited by 83 publications

References 34 publications

Validation and Evaluation of the Effects of Semi-Occluded Face Mask Straw Phonation Therapy Methods on Aerodynamic Parameters in Comparison to Traditional Methods

Validation and Evaluation of the Effects of Semi-Occluded Face Mask Straw Phonation Therapy Methods on Aerodynamic Parameters in Comparison to Traditional Methods

Voice Quality After a Semi-Occluded Vocal Tract Exercise With a Ventilation Mask in Contemporary Commercial Singers: Acoustic Analysis and Self-Assessments

Intraoral pressures produced by thirteen semi-occluded vocal tract gestures

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