高压氧预处理对提高飞行员下体负压耐力的应用研究  

Application of hyperbaric oxygen preconditioning to improve pilotrs lower body negative pressure tolerance

作　　者：刘叶[1] 刘红巾[1] Liu Ye;Liu Hongjin(Center of Clinical Aviation Medicine,PLA,General Hospital of Air Force,Beijing 100142,China)

机构地区：[1]空军总医院全军临床航空医学研究中心,北京100142

出　　处：《中华航空航天医学杂志》2018年第2期86-89,共4页Chinese Journal of Aerospace Medicine

摘　　要：目的探讨高压氧（hyperbaricoxygen，HBO）预处理对飞行员下体负压耐力的影响。方法20例健康男性歼击机飞行员为受试者，采用多人HBO舱、3次HBO暴露方案。舱内空气10min内逐渐加压至2．5绝对大气压（atmospheresabsolute，ATA），稳压65min（戴面罩吸氧30min×2，中间休息5min），之后在10min内逐步减压至1．3ATA，停留5min，继续减压5min至常压结束出舱。共计95min，每日1次（固定在下午15：30-17：05时进舱吸氧），连续3d。采用受试者自身前后对照设计，分别于HBO预处理前、后测量其下体负压耐力。结果HBO预处理前受试者累积应激指数为（-1353．50±449．95），HBO预处理后为（-1843．50±522．07），HBO预处理后累积应激指数明显增加（t=11．10，P〈0．05），即下体负压耐力明显提高。结论HBO预处理能够提高飞行员的下体负压耐力。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-rain interval）. Then the pressure was gradually reduced to 1.3 ATA in 10 rain 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 （- 1 353.50 - 449.95） to （- 1 843.50 - 522.07） 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 pilotls lower body negative pressure tolerance.

关 键 词：加速度 高压氧 下体负压 预处理 

分 类 号：R852.21[医药卫生—航空、航天与航海医学]