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目的:观察冷应激对寒区新兵血流动力学的影响。方法:从驻寒区某部新兵中随机抽取100例,分别于入伍时、入伍1、2个月后清晨空腹抽取静脉血5ml进行血流动力学指标检测。结果:新兵入伍1个月后,全血低、中、高切黏度,血浆黏度,血细胞比容,血细胞聚集指数显著高于入伍时水平(P<0.05);红细胞变形指数显著低于入伍时水平(P<0.05)。入伍2个月后,全血低、中、高切黏度,血浆黏度,红细胞比容,红细胞聚集指数均回落,仍高于入伍时水平,但两者差异不显著(P>0.05);红细胞变形指数回升,仍低于入伍时水平,但两者差异不显著(P>0.05)。不同地区新兵不同时间血流动力学指标变化差异不显著(P>0.05)。结论:冷应激可使新兵部分血流动力学指标发生变化,应加强耐寒训练,提高机体免疫力。
Objective: To observe the effect of cold stress on hemodynamics of recruits in cold region. Methods: 100 recruits from a certain recruits in the cold area were randomly selected, and 5 ml of venous blood was drawn fasting in the morning and 1 month after enlisting, respectively, for hemodynamic examination. Results: After 1 month, the viscosity of low, middle and high shear viscosity, plasma viscosity, hematocrit and hemagglutination index of the whole blood were significantly higher than those of the enlistment (P <0.05); the index of erythrocyte deformation was significantly lower than that of the enlistment (P <0.05). After 2 months of enlisting, low, medium and high shear viscosity, plasma viscosity, hematocrit and erythrocyte aggregation index of whole blood all dropped back, still higher than the enlistment level, but the difference was insignificant (P> 0.05) Index rebound, still below the level of enlistment, but the difference was not significant (P> 0.05). There was no significant difference in hemodynamic indexes between recruits in different regions at different time (P> 0.05). Conclusion: Cold stress can change some hemodynamic parameters of recruits, cold training should be strengthened to improve the body immunity.