ABSTRACT.

The issue of using transcranial direct current stimulation (tDCS) to improve sport performance has recently been a topic of interest for researchers. The purpose of this study was to examine the effect of tDCS over left dorsolateral prefrontal cortex (DLPFC) on mental fatigue and physical performance in professional swimmers. Fifteen professional swimmers were randomly assigned in a single-blinded, randomized, counterbalanced order to sham, anodal and cathodal stimulation conditions. Mental fatigue was induced by using a 60-min modified Stroop color-word task. Subjective ratings of mental fatigue were measured before and after the stroop task. The results showed that only anodal tDCS of the left DLPFC reduces adverse effects of mental fatigue in 50-meter swimming performance, whereas cathodal stimulation had no significant effect.

摘要。

使用经颅直流电刺激 (tDCS) 来提高运动表现的问题最近一直是研究人员感兴趣的话题。本研究的目的是检查 tDCS 对左背外侧前额叶皮层 (DLPFC) 对职业游泳运动员精神疲劳和身体表现的影响。15 名职业游泳运动员以单盲、随机、平衡的顺序被随机分配到假刺激、阳极和阴极刺激条件。通过使用 60 分钟改进的 Stroop 颜色词任务诱导精神疲劳。在 stroop 任务之前和之后测量精神疲劳的主观评分。结果表明，仅左侧DLPFC的阳极tDCS可减少50米游泳表现中精神疲劳的不利影响，而阴极刺激没有显着效果。