Suvorov P M, Bykova Iu I
Kosm Biol Aviakosm Med. 1975 Sep-Oct;9(5):44-9.
The functional potentialities of the cardiovascular system were investigated during an exposure of people with compensated chronic diseases of the cardiac muscle to acceleration (+Gz). The test subjects were exposed to acceleration of 3 and 5 g for 30 sec with an interval of 5 min. The parameters of hemodynamics, ECG and visual perception were recorded. The systolic blood volume, cardiac output and specific peripheral resistance were derived from the Bremser-Ranke formula. Seventy one subjects with heart diseases and 23 healthy subjects were examined. The subjects with myocardiodystrophy and myocarditic cardiosclerosis (12+/-16) showed a reduced tolerance to accelerations. During an exposure the subjects with atherosclerotic cardiosclerosis showed a higher pressure in vessels of ear conch than the healthy subjects. The myocardiodystrophic subjects frequently (20%) exhibited an inversion of electrocardiographic T2. The subjects with heart diseases (27-33%) showed extrasystolic disturbances. The results may be used in medical expertise of pilots.
在患有代偿性慢性心肌疾病的人群接受加速度（+Gz）作用期间，对心血管系统的功能潜力进行了研究。测试对象在间隔5分钟的情况下，分别以3g和5g的加速度暴露30秒。记录了血液动力学、心电图和视觉感知的参数。收缩血量、心输出量和外周比阻力由布雷姆泽-兰克公式得出。对71名心脏病患者和23名健康受试者进行了检查。患有心肌营养不良和心肌炎性心硬化的受试者（12±16）对加速度的耐受性降低。在暴露期间，患有动脉粥样硬化性心硬化的受试者耳壳血管中的压力高于健康受试者。患有心肌营养不良的受试者经常（20%）出现心电图T波倒置。患有心脏病的受试者（27 - 33%）出现期外收缩紊乱。这些结果可用于飞行员的医学鉴定。
