Whinnery J E, Laughlin M H, Uhl G S
Aviat Space Environ Med. 1980 Aug;51(8):827-31.
The environment of the advanced fighter aircraft represents a unique combination of stressful factors. Each of the individual stresses is hazardous, with the summation of these factors possibly resulting in an additional risk for sudden in-flight incapacitation. Advanced fighter aircraft are capabble of producing both rapid onset and high sustained +GZ forces which, on occasion, can exceed the tolerance limits of the pilot. The +GZ forces encountered during aerial combat maneuvering are physiologically stressful and have a profound effect on the regulatory mechanisms of the body. The influence of these stresses, including +GZ stress, on the autonomic nervous system is complex. The overall normal regulation of the cardiovascular system depends on a balance between both branches of the autonomic nervous system. An imbalance between sympathetic and parasympathetic tone can result in cardiac dysrhythmias and symptoms not conducive to safe and effective flight. An episode of ventricular tachycardia, coincident with an episode of loss of consciousness, was observed in an apparently healthy aircrewman during +GZ stress on the USAF School of Aerospace Medicine human centrifuge. The implications of autonomic imbalance in the production of similar potentially hazardous dysrhythmias and symptoms in the multistress environment deserve more in-depth investigation.
先进战斗机的环境代表了多种压力因素的独特组合。每一种单独的压力都具有危险性，这些因素的综合作用可能会增加飞行中突然失能的额外风险。先进战斗机能够产生快速发作且持续的高 +GZ 力，有时会超过飞行员的耐受极限。空战机动过程中遇到的 +GZ 力会给生理带来压力，并对身体的调节机制产生深远影响。这些压力，包括 +GZ 压力，对自主神经系统的影响是复杂的。心血管系统的整体正常调节依赖于自主神经系统两个分支之间的平衡。交感神经和副交感神经张力失衡会导致心律失常以及不利于安全有效飞行的症状。在美国空军航空航天医学院的人体离心机上，一名看似健康的空勤人员在 +GZ 压力测试期间，出现了一次室性心动过速发作，同时伴有意识丧失。在多压力环境下，自主神经失衡在产生类似潜在危险的心律失常和症状方面的影响值得更深入的研究。
