急性有氧运动的强度与抑制能力的剂量关系——来自ERP的证据  

The Dose-Response Relationship between Acute Exercise Intensity and Inhibitory Control——Cases from ERP Study

作　　者：王莹莹[1] 周成林[1] 

机构地区：[1]上海体育学院,上海200438

出　　处：《体育科学》2014年第11期42-49,66,共9页China Sport Science

基　　金：国家自然科学基金资助项目(31171004);上海市科委"创新行动计划"部分地方院校能力建设计划项目(13490503600)

摘　　要：目的:研究不同强度的急性有氧运动与抑制能力的关系,并了解其中的认知过程特征及其脑神经活动特点,为科学地制定运动处方提供理论依据。方法:将久坐大学生随机分为4组,包括3个运动干预组和1个阅读控制组,采用Go/NoGo范式测量其抑制能力,记录行为数据和ERP数据,探讨急性有氧运动的不同强度与抑制能力的剂量关系。结果:1)3个运动组的NoGo正确率显著高于控制组,其中,中等强度组最大(P<0.001);2)中等强度组的Go N2波幅显著低于控制组和大强度组(P=0.014),大强度组的Go N2潜伏期显著小于控制组和小强度组(P=0.034),NoGo N2波幅和潜伏期无组间差异(P=0.205;P=0.302);3)中等强度组的Go P3和NoGo P3波幅显著大于控制组和小强度组,大强度组的Go P3和NoGo P3波幅显著大于控制组(P<0.001;P=0.002),而P3潜伏期无组间差异(P=0.322;P=0.135)。结论:急性有氧运动能够有效地促进抑制能力,并且是有选择性地提高难度较大任务的成绩;急性有氧运动强度与抑制能力呈倒U型曲线关系,其主要机制在于完成任务过程中能够更加合理地分配认知资源,这一成果也丰富了倒U假说理论。Objective ：This study was designed to investigate the effects of different acute exer-cise intensity on respond inhibition ability in early adults .Methods ：Behavioral data and event-related potentials （ERPs） were recorded after subjects be divided into three exercise interven-tion groups and one reading control group through the adapted Go/NoGo task .Results ：1 ） Three exercise groups exhibited higher response accuracy than reading control group ,especially moderate intensity exercise group （P〈 0 .001） .2） Compared to reading and high intensity ex-ercise group ,moderate intensity group exhibited lower peak Go N2 amplitude （ P= 0 .014 ） . N2 latency was shorter in high intensity exercise group than that in reading and low intensity （ P= 0 .034 ） .But there is no significant NoGo N2 amplitude difference among goups （ P=0 .205;P=0 .302） .3） The Go P3 and NoGo P3 peak amplitude were higher in moderate in-tensity group than that in reading and low intensity group .And that in high intensity group were higher than that in reading group （P〈 0 .001 ;P= 0 .002） .But there is no significant P3 latency difference among goups （ P= 0 .322 ;P= 0 .135 ） .Conclusion ：Acute exercise can pro-mote respond inhibition ability .There is an inverted-U relationship between intensity and re-spond inhibition ability .This result enriches the theory of inverted-U hypothesis .

关 键 词：急性有氧运动 运动强度 抑制能力 事件相关电位 

分 类 号：G804.2[文化科学—运动人体科学]