高原战士耐寒能力的研究  

STUDIES ON COLD TOLERANCE OF SOLDIERS AT ALTITUDE

作　　者：姚家邦 刘全发[1] 张亦红[1] 刘嘉瀛[1] 李郁卿[1] 冯其海 杨洗林 

机构地区：[1]军事医学科学院卫生学环境医学研究所,56300部队

出　　处：《解放军预防医学杂志》1996年第2期91-95,共5页Journal of Preventive Medicine of Chinese People's Liberation Army

基　　金：全军"八五"重点课题

摘　　要：应用寒冷血管反应指数（ＶＲＣＩ）评价入藏年限不同的汉族战士、世居高原的藏族中青年以及移居平原４～５年的藏族学生的耐寒能力，旨在探讨高原低压缺氧对耐寒能力的影响。结果表明：随着人体对高原环境的适应，ＶＲＣＩ有一个从降低到逐渐回升的过程，即初入高原汉族新兵组ＶＲＣＩ最高，高原一年兵组ＶＲＣＩ最低。随着在高原服役时间的延长，耐寒力逐渐有所恢复。汉族三年兵组ＶＲＣＩ稍高于汉族二年兵组，而显著地高于汉族一年兵组。世居高原的藏族中青年ＶＲＣＩ明显地高于在高原服役１～２年的汉族战士组。移居平原４～５年的藏族学生ＶＲＣＩ非常明显地高于长居高原的藏族学生，表明高原低压缺氧能够显著降低人体的ＶＲＣＩ，因而能明显地降低人体的耐寒能力。推荐寒冷血管反应指数可用作为判断高原战士耐寒能力的指标。n order to elucidate the effects of altitude hypoxia on cold tolerance,index of vaso-response to cold (VRCI) of various groups was determined both at altitude (Lhasa, 3 658m)and lowland(Tianjin).The subjects consi-sted of①Han soldiers residing in Lhasa for about 1 inonth to 3 yrs,②na-tive Tibetans and③Tibetan students being in Tianjin for 4 to 5 yrs.The following conclusions were deduced(1)As acclimatization to altitude pro-ceeded,after one year lasting period of initial fall,VRCI,hence the toler-ance to cold,then restored gradually.The newcoming Han soldiers had the highest VRCI,1 yr group the lowest,while the 3 yr group resumed a value significantly higher than 1 yr group and not distinctly differed from native Tibetans.VRCI of the latter group was evidentlv higher than tliat of 1 and 2yr groups of Han soldiers(2)Altitude hypoxia could substantially lower the cold tolerance and repeated cold exposure at altitude mav to a certaincxtent improve the situation,(3)It is recommended that VRCI can also beused at aItitude as an index for evaluation of cold tolerance.

关 键 词：耐寒力 高原 血管反应指数 

分 类 号：R339.55[医药卫生—人体生理学]