Summary
Objective
This study investigated the immediate effects and their persistence (at 15 minutes)
of various durations of semi-occluded vocal tract exercise (SOVTE) (standard tube
into water and modified mask+tube into water exercises) as measured by electroglottographic
(EGG) and nasometric parameters.
Methods
The study included 30 women aged 19 through 28 years with healthy voices, and it comprised
five randomly implemented procedures (Ps): P1-tube phonation into water for 5 minutes;
P2-tube phonation into water for 10 minutes; P3-tube+ventilation mask phonation into
water for 5 minutes; P4-tube+ventilation mask phonation into water for 10 minutes;
P5-phonation with ventilation mask for 5 minutes. Fifteen-minute voice rest breaks
were provided between each procedure. Nasometric and electroglottographic measurements
were taken before, during, immediately after and at 5, 10, and 15 minutes after the
exercises, and the recorded measurements were analyzed.
Results
The immediate effects of P3 and P4 on voice quality showed better performance than
the other procedures. Among all the procedures, P1 had the smallest effect on voice
quality in terms of nasometric and EGG parameters and the least degree of effect permanence.
In all the fluctuating SOVTE procedures except P1, the nasalance scores decreased
(P1, P2, P3, and P4: fluctuating SOVTE; P5: steady SOVTE).
Conclusion
The tube phonation exercises modified by the addition of a ventilation mask were highly
advantageous in terms of EGG parameters. In addition to this, regardless of the mode
of application of the retention time, it was observed that the positive effect (ie,
lower vertical laryngeal position) of the exercises applied for 10 minutes was higher
than the exercises applied for 5 minutes.
Key Words
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Article info
Publication history
Published online: August 13, 2022
Accepted:
July 11,
2022
Publication stage
In Press Corrected ProofFootnotes
Declaration of Competing Interest: Authors declare that there is no conflict of interest in this study.
Funding Statement: This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.
Identification
Copyright
© 2022 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
