This volume provides a comprehensive review of causes of voice changes in athletes and coaches, the clinical presentation of laryngeal dysfunction, and its different treatment modalities. The authors discuss the predisposing factors of these changes including the use of anabolic steroids, and highlight the pathophysiology of voice disorders in sports-occupational voice users who very often need to vocalize outdoors and/or while performing strenuous exercise over noise. Chapters cover the literature on vocal health risk factors in the sports industry; the common phonatory disturbances in athletes, fitness instructors and coaches; sports-related laryngeal trauma; the impact of sports-related musculoskeletal injuries on phonation; vocal fold dysfunction in athletes, as well as the adverse effect of anabolic steroids intake on occupational voice users. An updated, brief review of the anatomy and physiology of phonation, with guidelines on the work-up and treatment of common laryngeal pathologies in patients with voice disorders is included.