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Phonatory Tasks and Outcome Measures for Assessing Vocal Fatigue: A Scoping Review
Rebeca Vila Nova de Araújo Torres1, Leonardo Wanderley Lopes1, Maiara Alves do Nascimento2
1Department of Speech Therapy, Federal University of Paraíba - UFPB, João Pessoa, Psaraíba, Brazil.
Journal of Voice : Official Journal of the Voice Foundation
|March 24, 2024
Summary
This scoping review maps phonatory tasks and outcome measures for evaluating vocal fatigue in healthy individuals. The sustained vowel /a/ task and acoustic/self-assessment measures are most common for immediate vocal fatigue effects.
Area of Science:
- Speech and Hearing Sciences
- Vocal Health Research
- Phonetics and Acoustics
Background:
- Vocal fatigue is a growing concern in various professions.
- Standardized methods for evaluating vocal fatigue are lacking.
- Understanding current practices is crucial for developing consistent protocols.
Purpose of the Study:
- To systematically map phonatory tasks used to induce vocal fatigue.
- To identify and categorize outcome measures employed in vocal fatigue assessment.
- To analyze evaluation methods in vocally healthy individuals.
Main Methods:
- A comprehensive scoping review was conducted.
- Searches were performed across multiple databases (PubMed, SCOPUS, Web of Science, etc.).
- Data extraction focused on phonatory tasks, vocal evaluation measures, and study characteristics.
Main Results:
- 60 studies were selected from 3756 identified.
- The reading task (46-120 min) was the most common vocal load activity.
- Sustained vowel /a/ and text reading were primary evaluation tasks; acoustic parameters and self-assessment scales were key outcome measures.
Conclusions:
- Significant diversity exists in phonatory tasks and outcome measures for vocal fatigue evaluation.
- The sustained vowel /a/ task is frequently used for assessing immediate vocal fatigue.
- Acoustic analysis and vocal self-assessment are the most reported outcome measures.
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