| 有空中晕厥史飞行人员的下体负压耐力及其心血管系统反应特点 |
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| 引用本文： | 潘明达,曾宪英,柏志华,朱应芬,侯晓玲,范乐业.有空中晕厥史飞行人员的下体负压耐力及其心血管系统反应特点[J].中国应用生理学杂志,1985(3). |
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| 作者姓名： | 潘明达 曾宪英 柏志华 朱应芬 侯晓玲 范乐业 |
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| 作者单位： | 海军医学研究所 上海
(潘明达，曾宪英，柏志华，朱应芬，侯晓玲)，海军医学研究所 上海(范乐业) |
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| 摘 要： | 本文通过观察有空中晕厥史及健康飞行人员对坐位下体负压的耐力及其心血管系统反应特点,证实了-50mmHg的下体负压强度已能够检测出空中晕厥组与健康组飞行人员耐力上的明显差异。在-50mmHg负压强度作用下,被检人员心血管系统功能状态发生了明显的变化;特别是暴露的2～4分钟,心率、血压、SV、EF、HI的变化,组间有明显差别。此外,STI和ECG各参数亦有明显变化,但组间差异尚不显著。
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| 关 键 词： | 下体负压 空中晕厥 心血管反应 |
TOLERANCE OF THE FLYERS WITH AIR SYNCOPE TO LOWER BODY NEGATIVE PRESSURE(LBNP) AND CHARACTERISTICS OF THEIR CARDIOVASCULAR RESPONSE |
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| Pan Mingda,et al.TOLERANCE OF THE FLYERS WITH AIR SYNCOPE TO LOWER BODY NEGATIVE PRESSURE(LBNP) AND CHARACTERISTICS OF THEIR CARDIOVASCULAR RESPONSE[J].Chinese Journal of Applied Physiology,1985(3). |
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| Authors: | Pan Mingda |
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| Abstract: | This study was carried out in military flyers. They were divided into two groups, the group of healthy flyers and the group of flyers with air syncope history. Subjects were exposed to negative pressure condition of -50 mmHg LBNP for 14 minutes.The results showed that the intensity of -50 mmHg LBNP may well differentiate the flyer's tolerance of one group from the other. Cardiovascular function of the subjects revealed important changes under the influence of -50 mmHg, especially after 2-4 min exposure. Parameters, such as HR, BP, SV, EF, HI showed significant differences between the two groups. Parameters of STI and ECG in both groups changed also apparently, but had no difference between these two groups. |
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| Keywords: | lower body negative pressure(LBNP) air syncope cardiovascular response |
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