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Physiologic responses of pilots flying high-performance aircraft

, : Physiologic responses of pilots flying high-performance aircraft. Aviation, Space, and Environmental Medicine 58(3): 205-210

This study deals with the physiologic responses to stress in F-4 fighter pilots and aircrew engaged in surface attack training (SAT) missions. Blood levels of HDL-cholesterol, LDH and LDH isoenzymes, CPK, and myoglobin were determined before and after each mission. Continuous EKG and transcutaneous PO2 recordings were made during briefing, preflight, and inflight. The personal history and habits of each participant were recorded. Each mission consisted of six successive bomb deliveries at 80-s intervals and at increasingly steep dive angles, each terminating in 5.5-6 +Gz during pull-up. Results revealed no apparent effect on HDL, COP isoenzymes, and LDH isoenzymes. Many myoglobin levels dropped as much as 50%. EKG recordings revealed ST elevations, ST depressions, T wave inversions, and marked sinus arrhythmias in some, while others showed increases in cardiac rate. Pilots flying these SAT missions in F-4C aircraft were found not to be significantly physiologically stressed.


PMID: 3579802

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