脑力疲劳负面影响足球运动员的协调表现

Mental fatigue impairs motor coordination performance in soccer

[目的]探究脑力疲劳对足球运动员协调表现的影响.[方法]采用随机交叉对照设计,男子业余足球运动员以随机、平衡的顺序完成STROOP任务(脑力疲劳诱导,实验组)和中性视频观看(对照处理,对照组)2次干预处理,并在每次干预处理后参加协调表现测试.采集受试者干预前后及过程中的VAS、BRUMS、RPE量表指标.[结果]实验组干预前各指标的基线水平与对照组基本类似,干预过程中的平均心率显著高于对照组,干预后的脑力疲劳分数、大脑努力分数和布鲁奈尔疲劳分数显著高于对照组;实验组速度运球测试成绩显著低于对照组;实验组和对照组两项协调表现测试过程中的主观疲劳度和平均心率组间均无显著差异.[结论]脑力疲劳对足球运动员协调表现存在负面影响,足球比赛中协调表现的下降可能与脑力疲劳有关.

[Objective]Investigate the effects of mental fatigue on motor coordination performance in soccer.[Methods]In this randomized crossover study,male amateur soccer players were involved in STROOP task for MF induction(experimental group)or emotionally neutral video watching as control(control group)in randomly counterbalanced order.After treatment,participants were instructed to participated in motor coordination performance test.Mental fatigue,mental effort,motivation and rating of perceived exertion pre-post treatment or during treatment were mainly collected using VAS,BRUMS and RPE scale.[Results]The baseline level of almost indicators of experiment group were similar to that of control group,while average of heart rate during treatment and mental fatigue,mental effort and BRUMS-fatigue post-treatment of experimental group were higher than that of control group.The speed dribbling test performance(one of the two motor coordination performance tests) was reduced in the condition of mental fatigue.The rating of perceived exertion and average of heart rate during two motor coordination tests were not significantly affected by mental fatigue.[Conclusion]Mental fatigue impairs soccer players' motor coordination performance,which may contribute to the decline of coordination performance in soccer match.