Study Results
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View full resultsBasic Information
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COMPLETED
NA
58 participants
INTERVENTIONAL
2021-10-07
2023-03-14
Brief Summary
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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.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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straw phonation in air
Participants will be asked to phonate an /u/ vowel through a stirring straw in air with slightly pursed lips and a soft voice onset.
Straw phonation in air
Phonation (/u/ vowel) through a stirring straw (3 mm diameter, 20cm length) in air
straw phonation in 2 cm water
Participants will be asked to phonate an /u/ vowel through a stirring straw, placed 2 cm below the water surface, with slightly pursed lips and a soft voice onset.
straw phonation in water
Phonation (/u/ vowel) through a stirring straw (3 mm diameter, 20cm length) in 2 cm or 5 cm water
straw phonation in 5 cm water
Participants will be asked to phonate an /u/ vowel through a stirring straw, placed 5 cm below the water surface, with slightly pursed lips and a soft voice onset.
straw phonation in water
Phonation (/u/ vowel) through a stirring straw (3 mm diameter, 20cm length) in 2 cm or 5 cm water
/u/ control condition
Participants will be asked to phonate an /u/ vowel with slightly pursed lips and a soft voice onset but without a straw.
/u/ phonation
/u/ phonation without a straw, control condition
Interventions
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Straw phonation in air
Phonation (/u/ vowel) through a stirring straw (3 mm diameter, 20cm length) in air
straw phonation in water
Phonation (/u/ vowel) through a stirring straw (3 mm diameter, 20cm length) in 2 cm or 5 cm water
/u/ phonation
/u/ phonation without a straw, control condition
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
17 Years
50 Years
ALL
Yes
Sponsors
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Research Foundation Flanders
OTHER
University Ghent
OTHER
Responsible Party
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Principal Investigators
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Kristiane Van Lierde, PhD
Role: PRINCIPAL_INVESTIGATOR
University Ghent
Locations
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Department of Rehabilitation Sciences, Ghent University (Hospital)
Ghent, East-Flanders, Belgium
Countries
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Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Other Identifiers
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249721N
Identifier Type: -
Identifier Source: org_study_id
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