Efficacy of Flow Ball Phonation in Professional Voice Users

The aim of this study is to investigate the effects of flow ball phonation on the voice of professional voice users and elite vocal performers, both with and without functional voice disorders. Given the substantial vocal demands inherent to this population and their reliance on the voice for occupational purposes, this intervention may represent a valuable approach for the prevention and/or treatment voice disorders.

NCT Number	NCT06960772
Lead Sponsor	University Ghent
Conditions	Prevention of Voice Disorders in Professional Voice Users, Treatment of Functional Voice Disorders in Professional Voice Users
Enrollment	144 participants
Start Date	2025-05-08
Primary Completion	2027-12-31 (estimated)
Study Completion	2028-09-30 (estimated)
Updated on ClinicalTrials.gov	2025-05-07