Parameter analysis using swallowing sounds shows differences in bolus volume, bolus viscosity, sex, and age.

ABSTRACT: Acoustic analysis of pharyngeal sounds during swallowing may capture physiological functions, providing a noninvasive method for early screening of swallowing decline. In this study, we examined changes in swallowing function across variations in bolus volume, bolus viscosity, sex, and age using parameters such as swallowing duration, average voltage, and swallowing power derived from swallowing sounds. The results showed that average voltage and swallowing power were significantly higher in men, both in younger (aged 20-25 years) and older (aged 50-65 years) groups, regardless of bolus volume and viscosity. These parameters generally decreased as bolus viscosity increased, with significant differences observed in all participants except older men. Regarding swallowing duration, older men

SUBMITTER: Konoike Y 

PROVIDER: S-EPMC12368031 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature