"Neural efficiency" of athletes' brain for upright standing: A high-resolution EEG study
"Neural efficiency" of athletes' brain for upright standing: A high-resolution EEG study
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DOI：
10.1016/j.brainresbull.2009.02.001
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发表时间：
2009-05-29
影响因子：
3.8
通讯作者：
Eusebi, Fabrizio
中科院分区：
文献类型：
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作者：
Del Percio, Claudio;Babiloni, Claudio;Eusebi, Fabrizio
“神经效率”假说假定专家的神经活动减少。在这里，我们检验了一种假设，即与非运动员相比，优秀运动员的特征是在动感的直立站立过程中皮质激活减少。同时记录了10名优秀空手道运动员、10名优秀击剑运动员和12名非运动员在简单双足站立(标准Romberg)和更吸引人的单足直立站立时的脑电(56个通道；BE-plus EB-Neuro(C))和稳定图(RGM(C))数据。平衡由身体的“摇摆面积”来表示。利用表面拉普拉斯估计对脑电数据进行空间增强。脑电阿尔法功率(8-12赫兹)的任务相关功率降低(TRPD)作为脑皮层活动的指标。各组单足站立时的“摆动面积”均大于双足直立时的摇摆面积。空手道和击剑运动员左侧中央、右侧中央、中间顶叶和右侧顶叶区域的低频α-TRPD(约8-10赫兹)的波幅低于非空手道运动员(P
"Neural efficiency" hypothesis posits that neural activity is reduced in experts. Here we tested the hypothesis that compared with non-athletes, elite athletes are characterized by a reduction of cortical activation during an engaging upright standing. EEG (56 channels; Be-plus Eb-Neuro (c)) and stabilogram (RGM (c)) data were simultaneously recorded in 10 elite karate, 10 elite fencing athletes, and 12 non-athletes during a simple bipodalic (standard Romberg) and a more engaging monopodalic upright standing. Balance was indexed by body "sway area". The EEG data were spatially enhanced by surface Laplacian estimation. Cortical activity was indexed by task-related power decrease (TRPD) of EEG alpha power (8-12 Hz) during monopodalic referenced to bipodalic condition. The body "sway area" was larger during the monopodalic than bipodalic upright standing in all groups. Low-frequency alpha TRPD (about 8-10 Hz) was lower in amplitude in the karate and fencing athletes than in the non-athletes at left central, right central, middle parietal, and right parietal areas (p