ANÁLISE DO INDICE DE FADIGA VOCAL EM CANTORES - REVISÃO NARRATIVA

Abstract

Introduction: The voice is an essential tool for singers, whether professional or amateur, who use it intensely and continuously. Its improper use can lead to symptoms such as vocal fatigue, hoarseness, and dysphonia, compromising both performance and vocal health. Singers often perceive signs of vocal strain, and speech-language pathology plays a key role in preserving vocal quality. Objective: To analyze, through a narrative review, the results of the application of the Vocal Fatigue Index (VFI) in singers. Method: Narrative literature review of studies published between 2021 and 2025 in the SciELO, CAPES Journals, and Google Scholar databases. Included studies were published in Portuguese and English, applying the VFI to singer populations. Exclusion criteria included theses, dissertations, editorials, monographs, studies in languages other than Portuguese and English, studies involving teachers or populations other than singers, and articles not available in full. Results: Five studies comprised the sample, all of which applied the VFI. The most significant impairments were found in the aspects of vocal fatigue and limitation according to the Vocal Fatigue Index (VFI). Regarding vocal restriction, there was a high frequency of reports of functional limitations, such as difficulty reaching specific notes. Physical discomfort included complaints such as sore throat and dryness. Conclusion: Vocal fatigue and limitation were the most affected aspects, even among participants without initial vocal complaints. Physical discomfort and only partial recovery with vocal rest were also reported.