Flow ball phonation for voice professionals
Part of Ear, nose & throat clinical trials.
This trial tests whether a device called a flow ball can help professional voice users with functional voice disorders improve their voice or prevent voice disorders. You blow into the ball to make it float while making sounds, which may strengthen your voice.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 60 years old
- You are a professional voice user (like a teacher, singer, or call center worker)
- If you have a voice problem, it must be functional (not caused by a physical issue like nodules or polyps)
- You are not pregnant
- You do not smoke
- You have no current ear, nose, or neurological conditions
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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