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Functional electrostimulation associated with phonation in women without vocal disorders
Dinete Romansina1, Marcia Simões-Zenari1, Kátia Nemr1
1Curso de Fonoaudiologia, Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional, Faculdade de Medicina, Universidade de São Paulo - USP - São Paulo (SP), Brasil.
Codas
|April 28, 2021
Summary
Functional Electrical Stimulation (FES) applied during phonation did not immediately alter vocal quality or Maximum Phonation Time (MPT) in women. No significant discomfort was reported, indicating FES is safe for vocal tasks.
Area of Science:
- Vocal science
- Electrophysiology
- Speech pathology
Background:
- Functional Electrical Stimulation (FES) is an electrotherapeutic modality.
- Its application in voice production is an emerging area of research.
- Understanding FES effects on vocal parameters is crucial for clinical application.
Purpose of the Study:
- To investigate the immediate impact of Functional Electrical Stimulation (FES) on vocal quality and Maximum Phonation Time (MPT).
- To assess self-reported discomfort during FES application at Maximum Supported Intensity (MSI) associated with phonation in normophonic women.
Main Methods:
- Experimental study involving 20 adult women with normal voices.
- FES was applied during sustained /a/ vowel emission across five series.
- Vocal quality, MPT, and stimulus intensity were measured before and after FES, with statistical comparison.
Main Results:
- No significant changes in vocal quality or MPT were observed post-FES.
- Maximum Supported Intensity (MSI) showed an increase across series.
- No significant negative symptoms or discomfort were reported during or after the procedure.
Conclusions:
- FES applied during phonation at MSI does not yield immediate improvements in vocal quality or MPT.
- FES appears to be well-tolerated, with no immediate adverse effects reported.
- Further research may explore different FES parameters or patient populations.
