双位点阳极经颅直流电刺激对精英足球运动员运动疲劳期间注意力、决策能力和工作记忆的影响

Effects of Dual-Site Anodal Transcranial Direct Current Stimulation on Attention, Decision-Making, and Working Memory during Sports Fatigue in Elite Soccer Athletes.

作者信息

Qi Fengxue, Zhang Na, Nitsche Michael A, Yi Longyan, Zhang Yingqiu, Yue Tian

机构信息

Sports, Exercise and Brain Sciences Laboratory, Sports Coaching College, Beijing Sport University, 100084 Beijing, China.

Department of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, 44139 Dortmund, Germany.

出版信息

J Integr Neurosci. 2025 Jan 21;24(1):26401. doi: 10.31083/JIN26401.

DOI:10.31083/JIN26401

PMID:39862014

Abstract

BACKGROUND

Sports fatigue in soccer athletes has been shown to decrease neural activity, impairing cognitive function and negatively affecting motor performance. Transcranial direct current stimulation (tDCS) can alter cortical excitability, augment synaptic plasticity, and enhance cognitive function. However, its potential to ameliorate cognitive impairment during sports fatigue remains largely unexplored. This study investigated the effect of dual-site tDCS targeting the dorsolateral prefrontal cortex (DLPFC) or primary motor cortex (M1) on attention, decision-making, and working memory in elite soccer athletes during sports fatigue.

METHODS

Sports fatigue was induced in 23 (non-goalkeeper) elite soccer athletes, who then participated in three counterbalanced intervention sessions: dual-site tDCS over the M1, dual-site tDCS over the DLPFC, and sham tDCS. Following tDCS, participants completed the Stroop, Iowa Gambling, and 2-back tasks.

RESULTS

We found a significant improvement in Stroop task accuracy following dual-site anodal tDCS over the M1 compared with the sham intervention in the incongruent condition ( = 0.036). Net scores in the Iowa Gambling task during blocks 4 ( = 0.019) and 5 ( = 0.014) significantly decreased under dual-site tDCS targeting the DLPFC compared with the sham intervention. No differences in 2-back task performance were observed between sessions (all > 0.05).

CONCLUSIONS

We conclude that dual-site anodal tDCS applied to the M1 enhanced attention performance while tDCS targeting the DLPFC increased risk propensity in a decision-making task during sports fatigue in elite soccer athletes. However, dual-site anodal tDCS targeting either the M1 or DLPFC did not significantly influence working memory performance during sports fatigue in this population. These preliminary findings suggest that dual-site tDCS targeting the M1 has beneficial effects on attention performance, potentially informing future research on sports fatigue in athletes.

CLINICAL TRIAL REGISTRATION

No: NCT06594978. Registered 09 September, 2024; https://clinicaltrials.gov/search?cond=NCT06594978.

摘要

背景

足球运动员的运动疲劳已被证明会降低神经活动，损害认知功能并对运动表现产生负面影响。经颅直流电刺激（tDCS）可以改变皮层兴奋性，增强突触可塑性，并改善认知功能。然而，其在改善运动疲劳期间认知障碍方面的潜力在很大程度上仍未得到探索。本研究调查了针对背外侧前额叶皮层（DLPFC）或初级运动皮层（M1）的双部位tDCS对精英足球运动员在运动疲劳期间的注意力、决策和工作记忆的影响。

方法

对23名（非守门员）精英足球运动员诱导运动疲劳，然后他们参加三个平衡的干预环节：M1上的双部位tDCS、DLPFC上的双部位tDCS和假tDCS。tDCS后，参与者完成了Stroop任务、爱荷华赌博任务和2-back任务。

结果

我们发现，与假干预相比，M1上的双部位阳极tDCS后，在不一致条件下Stroop任务的准确性有显著提高（P = 0.036）。与假干预相比，针对DLPFC的双部位tDCS下，爱荷华赌博任务第4个（P = 0.）和第5个（P = 0.014）区块的净得分显著降低（P = 0.014）。各环节之间在2-back任务表现上未观察到差异（所有P>0.05）。

结论

我们得出结论，应用于M1的双部位阳极tDCS增强了注意力表现，而针对DLPFC的tDCS在精英足球运动员运动疲劳期间的决策任务中增加了风险倾向。然而，针对M1或DLPFC的双部位阳极tDCS在该人群运动疲劳期间并未显著影响工作记忆表现。这些初步发现表明，针对M1的双部位tDCS对注意力表现有有益影响，可能为未来运动员运动疲劳的研究提供参考。