Laryngeal motion during exercise

Objective: To compare laryngoscopically observed changes in the larynx duri ng exercise in persons with exercise-induced laryngomalacia (EIL) with chan ges in asymptomatic control subjects. Study Design: Clinical study using a standardized exercise protocol. Methods: Subjects exercised an an increment al ergometer: videotaped recordings of the larynx were obtained through the entire exercise; pulmonary function tests were completed before and/or imm ediately after the exercise. Results: Laryngeal lumen size decreases during exercise in subjects with EIL. Conclusion: Subjects with EIL had a signifi cant decrease in laryngeal lumen size during exercise compared with asympto matic control subjects.