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Related Experiment Video

Updated: May 21, 2026

Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions

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Published on: November 25, 2017

The impact and application exercises on vocal fatigue.

Jing Peng¹, Mi Zou², Manwa L Ng³

¹Department of Rehabilitation, The Third Xiangya Hospital, Central South University, Changsha, China.

Scientific Reports

|May 19, 2026

Summary

A 5-minute vocal rest followed by 5-minute straw phonation improved voice quality and reduced discomfort more than 10-minute straw phonation in adults after vocal loading. This highlights the importance of timing for straw phonation interventions.

Keywords:

Straw phonation Vocal fatigue Vocal rest Voice assessment Voice quality

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Area of Science:

Speech and Hearing Sciences
Voice Disorders
Rehabilitative Medicine

Background:

Occupational vocal loading can lead to vocal fatigue in vocally healthy adults.
Straw phonation exercises are proposed interventions for vocal fatigue.
Optimal timing and duration of straw phonation require investigation.

Purpose of the Study:

To compare the therapeutic efficacy of different straw phonation exercise regimens for vocal fatigue.
To investigate the application of straw phonation after simulated occupational vocal loading.
To evaluate the impact of intervention timing and duration on voice quality and comfort.

Main Methods:

114 vocally healthy adults underwent a 1-hour vocal loading task (VLT).
Interventions included 10-minute vocal rest (control), 10-minute straw phonation (Group A), or 5-minute vocal rest + 5-minute straw phonation (Group B).
Acoustic (MPT, F0, jitter, shimmer, HNR, CPP-s) and perceptual (VTD, PPE) voice measures were assessed pre-VLT, post-VLT, and post-intervention.

Main Results:

Experimental Group B (5-min rest + 5-min phonation) showed superior improvements in jitter, shimmer, HNR, and CPP-s compared to the control group.
Both experimental groups reported reduced vocal tract discomfort (VTD) and perceived phonatory effort (PPE) compared to the control group.
The 5-minute vocal rest followed by 5-minute straw phonation yielded greater immediate voice quality improvements and reduced discomfort than 10-minute straw phonation.

Conclusions:

Straw phonation exercises provide short-term benefits for voice quality and comfort compared to vocal rest alone.
A regimen of 5-minute vocal rest followed by 5-minute straw phonation is more effective than 10-minute straw phonation for immediate post-vocal loading recovery.
The timing and duration of straw phonation are crucial for optimizing therapeutic outcomes in managing vocal fatigue.