Abstract

The study investigates the impact of a preventive vocal health program on the voice quality of male radio-broadcasters to identify effective strategies for mitigating vocal pathologies among professionals with high vocal demands. A pre-post within-subjects design was performed. Thirty participants without vocal pathology underwent assessments, including standardized voice evaluations and knowledge tests. A 7-week program tailored to radio-broadcasters’ needs, led by licensed Speech-Language Pathologists, was implemented. The training program utilized a holistic approach to voice use, considering hygienic, symptomatologic, and physiologic voice exercises. The results indicate significant improvements post intervention in acoustic measures (Jitter, from 1.80 to 0.83, P < 0.001; Shimmer, from 3.81 to 2.81, P < 0.001; noise-to-harmonics ratio, from 0. 16 to 0.13, P < 0.001) and fundamental frequency (F0, 137.72 to 118.95, P < 0.001; d = 1.09), alongside enhanced subjective voice quality. The program demonstrates the effectiveness of population-specific preventative interventions for broadcasters, highlighting the importance of education and proactive measures in preserving vocal health and potentially reducing long-term risks among professional voice users, even in the absence of pathology. This study underscores the relevance of such programs not only in Chile but also in other professional voice user populations globally, as there was an improvement in healthy voice use even among participants who did not have pathology, suggesting a potential for long-term risk reduction in healthy users.