高压氧预处理在提高飞行员下半身负压耐受性中的应用

Ye Liu
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引用次数: 0

摘要

目的:探讨高压氧(HBO)预处理是否能提高飞行员下体负压耐受性。方法:二十岁健康男性战斗机飞行员被选为研究对象,使用多个HBO室和俄罗斯HBO暴露方案被选中,燃烧室压力逐渐增加到2.5大气绝对(ATA) 10分钟和维持65分钟(两次30分钟面具氧呼吸和5分钟间隔区间压力逐渐减少到1.3 ATA 10分钟和5分钟恢复正常压力假设待5分钟后95分钟测试一天进行一次(设置(15:30—17:05),重复3天。测量HBO预处理前后下体负压耐受性,并进行自我对比。结果:经3轮HBO预处理,累计应激指数由(-1353.50±449 .95)显著提高至(-1843.50±522 . 0.7)(t =11.10,P<0.05),提示下体负压耐受性得到改善。结论:高压氧预处理能提高飞行员下体负压耐受性
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Application of Hyperbaric Oxygen Preconditioning to Improve Pilot′s Lower Body Negative Pressure Tolerance
Objective: To investigate whether the preconditioning of hyperbaric oxygen (HBO)can improve the tolerance of lower body negative pressure in pilots . Methods: Twenty healthy male fighter pilots were selected as subjects .The multiple HBO chamber was used and 3-time HBO exposure scheme was chosen .The chamber pressure was gradually increased to 2.5 atmospheres absolute (ATA) in 10 min and maintained for 65 min (with twice 30-min mask oxygen breathing and 5-min interval .Then the pressure was gradually reduced to 1.3 ATA in 10 min and returned to normal pressure in 5 min after staying for 5 min .Such 95-min test was undertaken once a day (set at 15:30--17:05) and repeated for 3 days .The lower body negative pressure tolerance was measured before and after HBO preconditioned and self-contrasted . Results: The cumulative stress index was significantly increased from(-1353.50±449 .95) to(-1843.50± 522 0.7) by 3 rounds HBO pretreatment (t =11.10,P<0.05) and it indicated that the lower body negative pressure tolerance had been improved . Conclusions: Hyperbaric oxygen preconditioning can improve the pilot’s lower body negative pressure tolerance
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中华航空航天医学杂志
中华航空航天医学杂志 航空航天医学
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期刊介绍: The aim of Chinese Journal of Aerospace Medicine is to combine theory and practice, improve and popularize, actively advocate a hundred flowers bloom and a hundred schools of thought contend, advocate seeking truth from facts, promote the development of the related disciplines of aerospace medicine and human efficiency, and promote the exchange and penetration of aerospace medicine and human efficiency with other biomedical and engineering specialties. Topics of interest for Chinese Journal of Aerospace Medicine include: -The content of the journal belongs to the discipline of special medicine and military medicine, with the characteristics of multidisciplinary synthesis and cross-penetration, and mainly reflected in the aerospace industry, aerospace flight safety and efficiency, as well as the synthesis of special medicine, preventive medicine, environmental medicine, psychology, etc. -Military aeromedicine (Air Force, Navy and Army aeromedicine) and civil aeromedicine, with a balance of aerospace medicine are the strengths of the journal. -The change in aerospace medicine from a focus on promoting physiological compensatory adaptations to enhancing human performance under extreme environmental conditions is what the journal is helping to promote. -The expansion of manuscripts in high altitude medicine is also a special emphasis of the journal.
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