短时中等强度有氧运动改善儿童执行功能的磁共振成像研究  

The FMRI Study of Acute Moderate Exercise on Children's Executive Function

作　　者：陈爱国[1,2] 殷恒婵[2] 王君[3] 李鑫楠[2] 宋争[3] 

机构地区：[1]扬州大学体育学院,江苏扬州225009 [2]北京师范大学体育与运动学院,北京100875 [3]北京师范大学认知神经科学与学习国家重点实验室,北京100875

出　　处：《体育科学》2011年第10期35-40,共6页China Sport Science

基　　金：全国教育科学规划教育部重点课题(DLA100338);北京师范大学认知神经科学与学习国家重点实验室开放课题(CNKOPYB0919);江苏省高校自然科学基金研究项目(11KJD180005)

摘　　要：目的:探讨短时中等强度有氧运动对儿童执行功能脑激活模式的影响,从脑系统的角度揭示短时中等强度有氧运动影响儿童执行功能的脑机制。方法:选择10岁儿童为研究对象,使用Flanker任务评价执行功能,综合利用体育测量技术、心理测量技术和功能磁共振成像技术检测一次30min的短时中等强度有氧运动前、后儿童执行功能及其脑激活模式的特征性变化。结果:1)短时中等强度有氧运动对儿童执行功能产生积极的改善效应;2)短时中等强度有氧运动能使儿童执行功能脑激活模式发生变化,具体表现为儿童执行功能脑激活模式中的双侧额上回、双侧额中回、双侧顶上小叶和左侧顶下小叶激活程度增加,左侧前扣带回激活减弱。结论:一次30min的短时中等强度有氧运动能改善儿童的执行功能,其脑机制是短时中等强度有氧运动诱发儿童执行功能脑激活模式的变化。Objective ： To investigate the effect of acute moderate exercise on brain activation pat tern of children＇s executive function （EF）, and further explore the brain mechanism of acute moderate exercise on children＇s EF. Methods：Before and after a single 30-min acute moderate aerobic exercise, nine right handed healthy volunteers aged at 10 were scanned with a Siemens MAGNETOM Trio 3. 0 Tesla magnetic resonance imaging scanner during performing the Flanker task. Results： 1 ） The beneficial effect of acute moderate exercise on children＇ s EF was significant. 2） The effects of acute moderate exercise on brain activation pattern of chil- dren＇s EF were significant. The findings were as followings：acute moderate exercise increased the level of activity in dorsolateral prefrontal cortex （middle frontal gyrus and superior frontal gyrus）, and parietal lohule （superior parietal lohules and inferior parietal [obules）, meanwhile, significantly reduced the level of activity in the anterior cingulate cortex. Conclusion： The beneficial effect of a single 30 min acute moderate exercise on children＇s EF was significant,moreover, brain mechanisms of the improved Flanker performance is was the change of children＇ s brain activation pattern elicited by it.

关 键 词：中等强度 有氧运动 儿童 执行功能 功能磁共振成像 脑机制 

分 类 号：B841.7[哲学宗教—基础心理学]