不同民族冷适应水平的研究

冬季在乌鲁木齐市对维族(25名)、藏族(12名)和汉族(43名)战士及21名维族大学生的冷适应水平进行测试。以血浆CPK和FFA、尿中儿茶酚胺和VMA,以及左中指泡冰水20min的皮温作为指标。结果表明藏、维族战士的适应水平优于汉族战士及维族大学生。但进新疆2年以上的汉族战士与藏、维族问无明显差别,加强体力锻炼之后,可使某些生化指标得到改善。作者认为尿中儿茶酚胺和VMA由于测试方法简便,结果稳定,可考虑作为人群冷适应的评价指标。

STUDY, ON THE COLD ADAPTATION IN SUBJECTS FROM DIFFERENT NATIONALITIES

Cold adaptation of soldiers from Uygur, Zan and Han nationalities and of Uygur university students were tested during a winter in Ulumuqi. Plasma CPK and FFA, urine catecholamine and VMA, and skin temperature of left middle finger during 20 min ice water immersion were served as cold adaptation evaluation indices. It was revealed that Zan and Uygur soldiers adapted better than that of Hans and Uygur students as a whole. But, Han soldiers those had been in Xinjiang for more than 2 years showed no significant difference from those of Zans and Uygurs. The soldiers who received enforced physical training exhibited an improvement in some biochemical parameters. From these findings, we suggested that, owing to the simplicity of the methods and the reliability of the results, urine catecholamine and VMA may serve as useful indices in assessing cold adaptation in human population.