Short-Term Effects of Four Common Semioccluded Vocal Tract Exercises in Primary Muscle Tension Dysphonia: A Randomized Controlled Trial.
Aziz R; Khoddami SM; Jalaie S; Aghazadeh K · 2026 · Journal of voice : official journal of the Voice Foundation
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Objectives This study investigated the effects of four common semioccluded vocal tract exercises (SOVTEs)-tongue trill, lip trill, straw phonation, and water resistance therapy (WRT)-in primary muscle tension dysphonia (MTD). Study design…
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Metadata source: Europe PMC · DOI 10.1016/j.jvoice.2025.12.036