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Voice Therapy With a Semi-occluded Vocal Tract

NCT06137131 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 58

Last updated 2024-10-30

Study results available
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Summary

1. The first objective of this research is to investigate the immediate effects of three semi-occluded vocal tract (SOVT) exercises (straw phonation in air, straw phonation in 2cm water, and straw phonation in 5cm water) on (supra)glottic activity of vocally healthy participants and patients with voice disorders (dysphonia) visualized with laryngovideostroboscopy.

Participants will receive a flexible laryngovideostroboscopy, both during normal phonation and during the specific SOVT exercise. These videos will be randomly and blindly evaluated by two experts using the Voice-Vibratory Assessment with Laryngeal Imaging (VALI) rating form (Poburka et al., 2017).

Researchers will compare the effects of these SOVT exercises on the (supra)glottic activity with the effects found in a control group producing /u/ phonation, using a randomized controlled trial.
2. The second objective of this research is to investigate the short- and long-term effects of the three SOVT therapy approaches on the (supra)glottic activity, voice quality and self-report of patients with voice disorders (dysphonia).

Participants will receive a short-term intensive therapy with the specific SOVT exercise across four weeks.

Immediately after the therapy program and at 1 and 3 months follow-up, the voice of the participants will be re-evaluated.

Conditions

  • Voice Disorders

Interventions

BEHAVIORAL

Straw phonation in air

Phonation (/u/ vowel) through a stirring straw (3 mm diameter, 20cm length) in air

BEHAVIORAL

straw phonation in water

Phonation (/u/ vowel) through a stirring straw (3 mm diameter, 20cm length) in 2 cm or 5 cm water

BEHAVIORAL

/u/ phonation

/u/ phonation without a straw, control condition

Sponsors & Collaborators

  • Research Foundation Flanders

    collaborator OTHER

  • University Ghent

    lead OTHER

Principal Investigators

  • Kristiane Van Lierde, PhD · University Ghent

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
17 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-10-07
Primary Completion
2023-03-14
Completion
2023-03-14

Countries

  • Belgium

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06137131 on ClinicalTrials.gov