优秀射箭运动员表象状态下脑内特定功能区MRS表现的研究  

Study on the Performance of MRS of Certain Functional Parts of Brains of Elite Archers under Mental Imagery Generating State

作　　者：吕慧[1] 李建英[1] 

机构地区：[1]山西大学体育学院,山西太原030006

出　　处：《体育科学》2011年第5期59-64,74,共7页China Sport Science

基　　金：国家体育总局奥运科研攻关项目(07070)

摘　　要：研究目的:对20名运动等级为一级以上的优秀射箭运动员表象刺激下前额叶背外侧白质及前部扣带回皮质N-乙酰天门冬氨酸(NAA)、胆碱复合物(Cho)和肌酸(Cr)等代谢物的浓度值及其相互之间的比值进行分析讨论,为研究大脑的高级功能提供了一条新的途径。其结果表明:1)优秀射箭运动员的前额叶背外侧白质及前部扣带回皮质N-乙酰天门冬氨酸(NAA)、胆碱复合物(Cho)和肌酸(Cr)等代谢物的浓度值及其相互之间的比值在不同性别分组,男、女间不存在显著差异;2)表象刺激下前额叶背外侧白质及前部扣带回皮质N-乙酰天门冬氨酸(NAA)、胆碱复合物(Cho)浓度水平显著降低,运动员表象状态下脑功能应激代谢水平增高,这表明前额叶白质和前部扣带回皮质一定程度参与了表象过程,提示大脑对工作记忆进行提取也参与了运动员的表象过程。This study aims to inaugurate a new method to study the senior function of human brain by contrast and analysis of the concentration value of NAA,Cho,Cr etc.in white matter of dorsolateral prefrontal cortex and the anterior cingulate cortex of 20 talented archers who have received a mental imagery training.The results show that：1） there is no distinct differences among the concentration values of NAA,Cho,Cr etc.in white matter of dorsolateral prefrontal cortex and the anterior cingulate cortex and the ratios of them between male and female.2） After the archers have received a mental imagery training,the concentration values of NAA,Cho and Cr in white matter of dorsolateral prefrontal cortex and the anterior cingulate cortex decrease sharply,and the brains response and metabolize quickly,which shows that the two parts have taken effect in this process and have helped to refresh the memory.

关 键 词：射箭 优秀运动员 表象 前部扣带回皮质 磁共振波谱 

分 类 号：G804.8[文化科学—运动人体科学]