基于脑波超慢涨落技术对1小时Flanker任务诱发运动员中枢疲劳的多指标测评

发布时间：2018-03-31 00:36

本文选题：运动员　切入点：中枢疲劳　出处：《中国运动医学杂志》2016年09期

【摘要】：目的:探究脑波超慢涨落技术(ET)是否可有效检测认知加工任务诱发的中枢疲劳,以及ET疲劳指数与心率变异性(HRV)、行为学指标和主观体力感觉量表(RPE)之间的关系。方法:以是否执行Flanker任务为自变量,RPE量表、行为学数据(正确率和反应时)、HRV、ET指标为因变量,以35名大学生运动员为被试(20名为实验组、15名为对照组),进行组间、时间序列纵向实验设计。结果:RPE结果显示测试时间的主效应显著,F(1,33)=30.93,P0.001,η~2=0.48。组别的主效应显著,F(1,33)=44.55,P0.001,η~2=0.57。测试时间和组别有交互作用,F(1,33)=22.72,P0.001,η~2=0.41。疲劳组正确率在不同时段有显著性差异,F(3,42)=35.83,P0.001,η~2=0.73。反应时在不同时段差异性差异,F(3,42)=24.08,P0.001,η~2=0.68。除窦性心搏RR间期标准差(SDNN)外(P0.05),HRV各指标在不同时段差异性显著。ET与RPE呈显著性正相关,ET与心率变异性中的低频(LF)、高频(HF)、低频高频比(LF/HF)均呈中度相关,ET与SDNN、相邻RR间期差值的均方根(RMSSD)无显著性相关,ET与反应时呈中度正相关,与正确率无显著性相关。此外,正确率和反应时呈现正相关。结论:1小时的Flanker任务可以诱导中枢疲劳,可将31~45 min作为应激反应期,46~60 min作为重度疲劳期;实验室认知操作任务诱发的中枢疲劳可以引起神经递质变化并且这种变化可以通过ET检测;ET疲劳指数与HRV指标、行为学指标和RPE测试结果具有相关性,可综合运用上述指标全面评价运动员中枢疲劳。
[Abstract]:Objective: to investigate whether the brain wave ultra-slow fluctuation technique (ETT) can effectively detect the central fatigue induced by cognitive processing tasks. The relationship between et fatigue index and HRVV, behavioral index and subjective physical sensation scale (RPE). Methods: using Flanker task as independent variable and behavioral data (accuracy and response time) as dependent variables, 35 college athletes were selected as subjects, 20 as experimental group and 15 as control group. Time series longitudinal experiment design. Results the main effect of the test time was significant (P 0.001). The main effect of the group was 44.55% (P 0.001), 畏 (0.57) (P 0.001). The test time and the interaction between the test time and the group were 22.72t P 0.001, and the accuracy rate of the fatigue group was significantly different in different periods. The accuracy of fatigue group was significantly different from that of the fatigue group (F ~ 342O ~ (35.83P) 0.001, 畏 _ 2o _ 2 ~ (0.73) P _ (0.001)). There were significant differences in different time intervals (P 0.001, 畏 n 2n 0.68). Except for the RR interval of sinus beats, there was a significant difference between RPE and et. There was a significant positive correlation between et and RPE in low frequency, high frequency, high frequency, and high frequency ratio in heart rate variability of et and heart rate variability (HRV) in different time periods (P < 0. 05, P 0. 05, P 0. 001, P = 0. 001, P = 0. 001, n = 0. 68, P = 0. 05, P = 0. 05, P = 0. 05, P = 0. 05). There was no significant correlation between RMS SDD (RMSSD) and RMSSD (RMSSD) of RMS, and there was a moderate positive correlation between RMSSDET and the reaction time, and there was no significant correlation between RMS SDD and RMSSDET, and there was no significant correlation between RMS SDD and RMSSD. There was no significant correlation between accuracy and accuracy. In addition, there was a positive correlation between correct rate and response time. Conclusion Flanker task for 1 hour can induce central fatigue, and 31D 45 min can be used as stress period (46 ~ 60 min) as severe fatigue phase. Central fatigue induced by cognitive tasks in laboratory can cause neurotransmitter changes and this change can be correlated with HRV index, behavioral index and RPE test results. The above indexes can be comprehensively used to evaluate athletes' central fatigue.
【作者单位】：宁波大学体育学院;甘肃省静宁县阿阳实验学校;
【基金】：宁波大学《运动心理理论与应用》课程建设(项目编号:ZDKC2014003) 浙江省大学生科技创新活动暨新苗人才计划(项目编号:2015R405079)
【分类号】：R87

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