Abstract
Teachers’ vocal health depends on the interaction between the demands of professional voice use and the ergonomic conditions of the work environment. This article critically analyzes recent literature on ergonomic factors associated with teachers’ vocal health, considering environmental noise, classroom acoustics, air quality, thermal comfort, work organization, and biomechanical and psychosocial factors. A targeted search was conducted in PubMed, Scopus, and Web of Science, complemented by a manual review of references. The evidence reviewed suggests that background noise, poor acoustics, inadequate ventilation, dry air, extreme temperatures, and high workload increase vocal demand, phonatory effort, vocal fatigue, and symptoms of dysphonia. Overall, the findings support a preventive approach grounded in occupational ergonomics, integrating environmental, organizational, and individual conditions.
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