Effects of Flow Ball Phonation on Professional Voice Users

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the impact of flow ball phonation on the voices of professional voice users and elite vocal performers, focusing on both prevention and treatment of functional voice disorders. Participants will be randomly assigned to receive either flow ball intervention, straw phonation, or a sham treatment over a three-week period. The study employs a longitudinal randomized sham-controlled trial design, with assessments conducted before and after the intervention to evaluate vocal performance. The flow ball device offers real-time visual feedback, which may enhance the effectiveness of voice therapy.

Why it matters

Who can join: the full rules

OBJECTIVE 1: TREATMENT

Inclusion Criteria:

* All genders
* All ethnicities
* 18 - 60 years
* Diagnosis of a functional voice disorder
* Professional voice users

Exclusion Criteria:

* Diagnosis of an organic voice disorder
* Current participation in voice therapy
* Previous phonosurgical interventions
* Pregnancy
* Smoking
* Nasal or ear diseases
* Neurological disorders

OBJECTIVE 2: PREVENTION

Inclusion Criteria:

* All genders
* All ethnicities
* 18 - 60 years
* Professional voice users

Exclusion Criteria:

* Current or previous diagnosis of a voice disorder
* Current or previous participation in voice therapy
* Previous phonosurgical interventions
* Pregnancy
* Smoking
* Nasal or ear diseases
* Neurological disorders

Where it's running

• Ghent University
  Ghent, East-Flanders, Belgium Recruiting

Study contacts

• Principal investigator: Evelien D'haeseleer — University Ghent
• Study coordinator: Casey Dewanckele
• Email: casey.dewanckele@ugent.be
• Phone: +32491547192

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.