Abstract
Objective To analyse the flight training influence to pulmonary ventilation, pulse and blood oxygen saturation of F-8 and A-5 pilots, and to evaluate the protective effect of oxygen supply equipments. Methods Forty pilots were respectively divided into two groups by the type of aircraft, altitude, time of flying, training duration and smoking habit. The pulmonary ventilation, pulse and blood oxygen saturation were compared by the measurement of 30 minutes before and 15 minutes after flight training. Parameters of pulmonary ventilation were also compared between smoking and nonsmoking groups. Results In all classified aircraft type, altitude, time of flying and training duration groups there were no significant differences on vital capacity (VC), forced vital capacity (FVC), forced expired volume in one second (FEV ), peak expiratory flow (PEF), forced expiratory flow from 25%～75% of FVC (FEF ), forced expired flow at 50% of FVC (V ), forced expired flow at 25% of FVC (V ), maximal voluntary ventilation (MVV), pulse and blood oxygen saturation (P> 0.05) in comparison of the states before and after flight training. But post flight measurements, such as FEF and V , were decreased in smoking group comparing to those in nonsmoking group (P<0.05 or 0. 01). Conelusions Pilots' pulmonary ventilation, pulse and blood oxygen saturation are not significantly influenced by the type of aircraft, altitude, time of flying and training duration. Smoking would impair the function of small airway. The protection of oxygen supply equipment is effective and reliable. Key words: Altitude; Anoxia; Pulmonary ventilation; Vital capacity; Pulse; Smoking; Re-spiratory physiology
Published Version
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