男大学生体成分与脑血流速度相关性研究

The Research on the Relationship Between Body Composition and Cerebral Blood Flow Velocity in Male College Students

探讨身体成分与脑血流速度(Cerebral Blood Flow Velocity,CBFV)的关系,以便揭示体脂对CBFV的影响。方法:以10名男大学生为实验对象,应用经颅多普勒技术检测了其安静时的大脑中动脉血流速度和采用In Body身体成份分析仪测试了其身体成分,然后对CBFV和身体进行了相关分析。结果:大脑中动脉收缩期峰速度(Vp)、舒张期末峰速度(Vd)和平均峰速度(Vm)分别与其体脂、体脂百分数和体重指数(BMI)呈显著负相关;而大脑中动脉的搏动指数(PI)分别与体脂百分数和BMI呈显著正相关。结论:体脂对CBFV有显著的负面影响,体脂增多,CBFV降低。

By investigating the relationship between body composition and cerebral blood flow velocity, the effect of body fat on cerebral blood flow velocity was evaluated. Methods： The middle cerebral artery blood velocity was evaluated by Using CBS - II transcranial Doppler at rest in ten male college students, and their body composition was assessed by using In Body body Composi- tion analyser at rest. Correlation of body composition to the middle cerebral artery blood velocity was analysed. Results ： Vp, Vd and Vm of MCA were negatively related to body fat,body fat percentage and BMI respectively. PI of MCA was positively related to body fat, body fat and BMI percentage, respectively. Conclusion： Our study implies boy fat has significant and negative effect on cerebral blood flow velocity. Cerebral blood flow velocity will reduce when body fat increases.