Forced expiration and inspiration under hyperbaric conditions.
Assessment in 37 healthy volunteers (aged 23 to 53 years) provided evidence that in a hyperbaric environment (0.4 MPa) a significant decline of expiratory and inspiratory dynamic indicators of pulmonary ventilation occurs, as compared with normobaric conditions (0.1 MPa). This phenomenon has a physical basis and it should be a contraindication for subjects with bronchopulmonary obstruction to dwell in a hyperbaric environment.
Hrncír
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Clinic of Occupational Diseases, Third Faculty of Medicine, Charles University, Prague, Czech Republic.
D000328:Adult; D001274:Atmospheric Pressure; D005540:Forced Expiratory Flow Rates; D006801:Humans; D008168:Lung / Q000502:physiology; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D015656:Respiratory Mechanics / Q000502:physiology*; D013147:Spirometry; D014797:Vital Capacity