高温与常温环境下急性运动体核温度与儿茶酚胺浓度变化比较  

The comparison of the nuclear body temperature and catecholamine concentration in acute exercise between high and normol temperature

作　　者：王乐 杨晓迪 祝英 

机构地区：[1]辽宁省体育科学研究所,辽宁沈阳110179

出　　处：《辽宁体育科技》2017年第5期50-53,共4页Liaoning Sport Science and Technology

摘　　要：目的:比较人体在高温与常温两种环境下,递增负荷至力竭运动时体核温度与儿茶酚胺类神经递质变化情况,探讨影响体核温度升高的敏感指标。方法:9名运动员分别在温度30℃、相对湿度80%和温度20℃、相对湿度40%的实验室内进行递增负荷运动,记录体核温度的持续变化,检测两种实验条件下血液中肾上腺素(E)、去甲肾上腺素(NE)和多巴胺(DA)含量的变化。结果:与温度20℃、相对湿度40%的环境相比较,在温度30℃、相对湿度80%的环境下运动,体核温度上升较快,E、NE、DA上升幅度大,但是运动时间较短。结论:(1)中枢温度过高可能是造成运动力竭的主要原因之一;(2)儿茶酚胺类神经递质介导了运动中体温升高的过程。Objective：to compare the changes of body nuclear temperature and catecholamine neurotransmitters during the incremental load to exhaustion exercise in the two environments of high and normal temperature,and to explore the sensitive indexes that affect the increase of body nucleus temperature.Methods：9 athletes were at a temperature of 30℃,relative humidity of 80℃ and a temperature of 20℃ and 40℃ relative humidity in the lab incremental exercise,continuous change record core body temperature,in blood test under two experimental conditions epinephrine（E）,norepinephrine（NE）and content（DA）.Results：compared with the environment of temperature 20℃ and relative humidity 40℃,the core body temperature increased rapidly when the temperature was 30℃ and relative humidity was 80℃,and the rising range of E,NE and DA was large,but the movement time was shorter.Conclusion：（1）high central temperature maybe one of the major cause of exercise exhaustion.（2）catecholamine neurotransmitters mediate the rise in body temperature during exercise.

关 键 词：高温高湿环境 体核温度 儿茶酚胺 

分 类 号：G804.7[文化科学—运动人体科学]