Du Rietz Ebba, Barker Alan R, Michelini Giorgia, Rommel Anna-Sophie, Vainieri Isabella, Asherson Philip, Kuntsi Jonna
King's College London, Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, SE5 8AF, London, UK.
Children's Health and Exercise Research Centre, University of Exeter, St. Luke's Campus, Heavitree Road, EX1 2LU, Exeter, UK.
Behav Brain Res. 2019 Feb 1;359:474-484. doi: 10.1016/j.bbr.2018.11.024. Epub 2018 Nov 19.
Emerging research suggests that a single bout of aerobic exercise can improve cognition, brain function and psychological health. Our aim was to examine the effects of high-intensity exercise on cognitive-performance and brain measures of attention, inhibition and performance-monitoring across a test-battery of three cognitive tasks.
Using a randomised cross-over design, 29 young men completed three successive cognitive tasks (Cued Continuous Performance Task [CPT-OX]; Eriksen Flanker Task; four-choice reaction-time task [Fast Task]) with simultaneous electroencephalogram (EEG) recording before and after a 20-min high-intensity cycling exercise and resting control session. Cognitive-performance measures, EEG power and event-related potential measures, were obtained during the tasks. Random-intercept linear models were used to investigate the effects of exercise, compared to rest, on outcomes.
A single bout of exercise significantly (p < 0.05) increased the amplitude of the event-related potential Go P3, but had no effect on the contingent negative variation (CNV), Cue P3 or NoGo P3, during the CPT-OX. Delta power, recorded during the CPT-OX, also significantly increased after exercise, whereas there was no effect on cognitive-performance in this task. Exercise did not influence any cognitive-performance or brain measures in the subsequent Flanker or Fast Tasks.
Acute high-intensity exercise improves brain-indices reflecting executive and sustained attention during task performance (Go P3 and delta activity), in the CPT-OX, but not anticipatory attention (Cue P3 and CNV) or response inhibition (NoGo P3) in young-adult men. Exercise had no effect on cognitive-performance or brain measures in the subsequent Flanker and Fast tasks, which may potentially be explained by the time delay after exercise.
新出现的研究表明，单次有氧运动可以改善认知、脑功能和心理健康。我们的目的是通过一组包含三项认知任务的测试，研究高强度运动对认知表现以及注意力、抑制能力和表现监测等脑指标的影响。
采用随机交叉设计，29名年轻男性在进行20分钟的高强度自行车运动和静息对照试验前后，完成三项连续的认知任务（线索连续性能任务[CPT - OX]、埃里克森侧翼任务、四选反应时任务[快速任务]），同时记录脑电图（EEG）。在任务过程中获取认知表现指标、EEG功率和事件相关电位指标。使用随机截距线性模型研究运动与休息相比对结果的影响。
在CPT - OX任务中，单次运动显著（p < 0.05）增加了事件相关电位Go P3的波幅，但对伴随负变化（CNV）、线索P3或NoGo P3没有影响。在CPT - OX任务中记录的δ功率在运动后也显著增加，而该任务中的认知表现没有受到影响。运动对随后的侧翼任务或快速任务中的任何认知表现或脑指标均无影响。
急性高强度运动可改善反映年轻成年男性在任务执行过程中执行和持续注意力的脑指标（Go P3和δ活动），在CPT - OX任务中，但对预期注意力（线索P3和CNV）或反应抑制（NoGo P3）没有影响。运动对随后的侧翼任务和快速任务中的认知表现或脑指标没有影响，这可能是由运动后的时间延迟所解释的。
