久居西藏高原部队战士维生素C需要量的研究  

A STUDY REQUIREMENTS FOR VITAMIN C IN SOLDIENS INHABITING AT TIBETAN TABLELAND.

作　　者：石元刚[1] 杨家驹[1] 韦娜[1] 黄国荣[1] 蒋宝泉[1] 唐晓敏 糜漫天[1] 官军[1] 曹祯吾[2] 陈云苗 张旭[2] 

机构地区：[1]第三军医大学预防医学系营养与食品卫生学教研室,重庆400038 [2]西藏军区总医院,拉萨850003

出　　处：《现代预防医学》1999年第4期476-478,共3页Modern Preventive Medicine

摘　　要：为保证驻高原部队战士维生素C的营养需要而进行维生素C需要量研究, 为制定高原特殊环境部队人员维生素C供给量标准提供依据。选择进驻高原1～3年的青年男性战士50 名, 分为5 组, 每组10 名。第1～5 组每人每日维生素C摄取量为20、40、60、80和110m g, 在实验期间膳食维生素C摄取进行严格控制。实验期为24天。以空腹血浆维生素C含量, 24小时尿总维生素C排出量, 口服500m g 维生素C4小时尿中排出量等三项为评价指标。于实验等14 天测定, 第4组以上三项指标均达到标准要求。结果表明: 久居西藏高原部队战士维生素C需要量为80m g, 供给量为96m g。The Vitamin C requirements for soliders stationed at tibetan tableland was studied in order to ensure their nutritional requirements and provide the RDA for vitamin C under high altitude circumstance.Fifty young male soliders who had been stationed at the tableland for 1 to 3 years were randomly divided into five groups.Each group consists of 10 subjects.The dose from vitamin C preparation were 20、40、60、80、110mg per capita per day in the five groups respective.The intakes of vitamin C from diet were strictly controued during the period of experiment.Fasting blood samples were collected for the analysis of vitamin C on the 14 days.Total vitamin C excretion in 24h urine and total vitamin C excreton in urine for 4 hours atter taking 500mg vitamin C were used for the assessment on the 14th day.Above three indices of fourth group were up to the standard.It can be considered that soldiers inhabiting at tibetan tabland need 80mg vitamin C per capita per day,which was higher than the requirements for the soldiers inhabiting at plain areas.

关 键 词：高原部队 维生素C 需要量 营养素 

分 类 号：R151.4[医药卫生—营养与食品卫生学] R821.6[医药卫生—公共卫生与预防医学]