The Effectiveness of Vocal Health Programs in the Prevention of Voice Disorders in Teachers: A Systematic Review and Meta-Analysis.

Purpose: To assess the effectiveness of voice disorder prevention programs and to verify the effectiveness of direct and indirect voice training on the Voice Handicap Index (VHI), Voice-Related Quality of Life (V-RQOL), maximum phonation time (MPT), fundamental frequency and shimmer, for the prevention of voice disorders in regular-school teachers.

Methods: This is a literature review with meta-analysis, carried out through an electronic search in PubMed, Cochrane Central, Embase, Web of Science, Scopus and BVS, and Google Scholar, as well as ClinicalTrials.gov databases for gray literature.

Effect of Performance Time of the Semi-Occluded Vocal Tract Exercises in Dysphonic Children.

Objective: This study aimed to verify the effects of execution time on auditory-perceptual and acoustic responses in children with dysphonia completing straw phonation exercises.

Study Design: A randomized, prospective, comparative intra-subject study design was used.

Methods: Twenty-seven children, ranging from 5 to 10 years of age, diagnosed with vocal cord nodules or cysts, were enrolled in the study.