Phonation into a glass tube immerse in water: analysis perceptiveauditory vocal and videolaryngostroboscopy in women without laryngeal disorders, complaints or vocal alterations

ABSTRACT: Purpose: to check and correlate measures of vocal acoustic of the glottal source and laryngeal characteristics of women without laryngeal disorders and without vocal complaints, after the phonation in a glass tube immersed in water. Methods: twenty-four women, between 18 and 40 years, were available and allocated in two groups, being 12 in the study group and 12 in the control group. Were performed collect the vowel /a:/ and videolaryngostroboscopy before and after the execution of technique, in the study group, and before and after a period of silence in the control. Was performed an analysis vocal acoustics and hearing perceptual and statistical analysis with Wilcoxon, Chi-square and Spearman (p