Pulmonary function changes in Navy divers during their professional careers.

Introduction: In divers, conflicting results regarding the development of small airway disease and "large lungs" have been reported. Purpose: To analyze the changes in pulmonary function over time, the development of "large lungs" and to see whether the pulmonary function deviates from subjects with "non-large lungs." Methods: It is a longitudinal cohort study from 1983 till 2013 in professional navy divers, in which lung functions tests were performed annually. Results: In 1,260 navy divers, 8,149 pulmonary function tests were analyzed. The forced expiratory volume (FEV1) did not change except initially in those with abnormally low lung function (baseline value 更多