Rattray Ben, Smee Disa
National Institute of Sport Studies, Faculty of Health, University of Canberra, University Drive, Bruce ACT 2614, Australia.
J Sci Med Sport. 2013 Nov;16(6):567-70. doi: 10.1016/j.jsams.2012.12.007. Epub 2013 Jan 20.
Moderate intensity aerobic exercise is known to facilitate cognitive performance but new technologies enable increasing opportunities to investigate this phenomenon under different circumstances. This study aimed to describe the effect of exercise on executive function assessed though a novel tablet-based test.
Twenty healthy, active participants volunteered to take part in the randomised fully controlled trial.
Participants undertook an initial test of maximal aerobic capacity as well as ventilatory threshold during an incremental cycle test. A touch screen tablet computer was placed in the middle of the handlebars at an angle of approximately 45°, and participants were asked to complete the response-inhibition cognitive task (Speed Match, Lumos Labs Inc.) at set time points. A full familiarisation trial was performed prior to subsequent visits, in which participants completed either the control (no exercise) and exercise (90% ventilatory threshold (VT)) trials in a randomised order. During the 1h trials, the cognitive task was performed prior to, during and post the intervention. Reaction time and accuracy of participant responses were recorded.
Performing the cognitive task resulted in elevated heart rates and ventilation rates during control and exercise. Exercise facilitated performance in the executive function task such that reaction time was enhanced with no change in accuracy. A range of reliability measures are also reported.
This method of assessing executive function during exercise displays face validity and provides promise for further investigation of cognitive function using a simple, short duration, easily administered and widely available test.
已知中等强度有氧运动有助于认知表现，但新技术使人们有更多机会在不同情况下研究这一现象。本研究旨在描述通过一种基于平板电脑的新型测试评估运动对执行功能的影响。
20名健康、活跃的参与者自愿参加随机完全对照试验。
参与者在递增式自行车测试中进行了最大有氧能力以及通气阈值的初始测试。将一台触摸屏平板电脑以约45°角放置在车把中间，要求参与者在设定时间点完成反应抑制认知任务（速度匹配，Lumos Labs公司）。在后续访视前进行了一次全面的熟悉试验，参与者以随机顺序完成对照（无运动）和运动（通气阈值（VT）的90%）试验。在1小时的试验中，认知任务在干预前、干预期间和干预后进行。记录参与者反应的反应时间和准确性。
在对照和运动期间执行认知任务导致心率和通气率升高。运动促进了执行功能任务的表现，反应时间得到改善，准确性没有变化。还报告了一系列可靠性指标。
这种在运动期间评估执行功能的方法具有表面效度，并为使用简单、持续时间短、易于实施且广泛可用的测试进一步研究认知功能提供了前景。
