Age- and Gender-Related Difference of Vocal Fold Vibration and Glottal Configuration in Normal Speakers: Analysis With Glottal Area Waveform

摘要

Summary: Introduction. Glottal area waveform (GAW) analysis is widely used in the assessment of vocal fold vibration by high-speed digital imaging (HSDI). Because normative GAW data obtained from a large number of subjects have not been reported, we conducted a prospective study to obtain normative results for GAW analysis of HSDI findings and clarify normal variations associated with gender and age.Methods. Vocally healthy adults were divided into a young group (aged < 35 years) and an elderly group (aged > 65 years). The configuration and size of the glottal area were assessed at different phases of the glottal cycle, and gender- and age-related differences were evaluated.