Oscilação oral de alta frequência sonorizada e sopro sonorizado com tubo de silicone em idosos com presbilaringe: ensaio clínico randomizado
High-frequency oral oscillation with phonation and sonorous blowing into a silicone tube in older adults with presbylarynx: randomized clinical trial
Jade Zaccarias Bello; Mauriceia Cassol
Resumo
Palavras-chave
Abstract
Purpose: To investigate the effects of high-frequency oral oscillation with phonation (VOHFO), sonorous blowing into a silicone tube, and the combination of both techniques in older adults with presbylarynx, regarding phonation and respiration.
Methods: Randomized clinical trial with 51 older adults diagnosed with presbylarynx by an otolaryngologist, allocated into three groups: G1 – VOHFO; G2 – silicone tube with sonorous blowing; G3 – combination of the techniques. Eight weekly sessions were conducted. Outcome variables were: maximum phonation time (MPT), vital capacity (VC), and perceptual-auditory vocal quality (GRBASI). Assessments included perceptual-auditory analysis, spirometry, and MPT measurements. Data were analyzed using ANOVA and Generalized Estimating Equations. The study is registered in the Brazilian Clinical Trials Registry (REBEC), number RBR-46hk7r.
Results: Before the intervention, the mean MPT for the vowel /a/ was 8.1s, and after therapy, 10.1s; VC increased from 4.04L to 4.52L. These changes were statistically significant (P < 0.001). No changes were found in vocal quality by GRBASI, and no relevant differences were observed between isolated and combined techniques.
Conclusion: VOHFO and sonorous blowing into a silicone tube significantly improved MPT and VC, with no perceptible effect on GRBASI. The observed aerodynamic improvement may favor vocal resistance, projection, and communicative participation in daily life, enhancing autonomy and quality of life in this population.
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Referências
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Submetido em:
24/07/2025
Aceito em:
25/09/2025
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