暴露于+Gz时,抗荷应变装置和加压呼吸能引起心脏前负荷和后负荷的巨大改变。经常在离心机上测试新型作战生命保障系统的人员会反复遇到此问题。DCIEM“A”组离心机受试人员的筛选包括每年进行一次超声心动描记并给出舒张功能参数。将受试组与对照组按年龄、性别和锻炼模型匹配对比,他们在心室容积或心壁厚度、二尖瓣E和A点或比率、减速时间、等 When exposed to + Gz, the anti-strain device and pressurized breathing can cause a dramatic change in pre-cardiac load and post-load. People who regularly test new combat life support systems on centrifuges repeatedly encounter this problem. Screening of DCIEM “A” group centrifuge testers included performing echocardiography annually and giving diastolic function parameters. The test and control groups were matched by age, sex, and exercise model, and they were compared in terms of ventricular volume or wall thickness, mitral E and A points or rates, deceleration time, etc.