Brisswalter J, Arcelin R, Audiffren M, Delignières D
Department of Applied Physiology and Health Factors, L.A.P.M.H., University of Poitiers, France.
Percept Mot Skills. 1997 Dec;85(3 Pt 1):1019-27. doi: 10.2466/pms.1997.85.3.1019.
The influence of physical fitness and energy expenditure on a simple reaction time task performed during exercise was investigated. Two groups of 10 subjects were used, one was composed of trained middle-distance runners and one of students who had no regular physical training. The subjects performed a simple reaction time task while pedalling on a cycloergometer at different relative power output corresponding to 20, 40, 60, and 80% of their own maximal aerobic power and immediately after exercise. During exercise, the results showed a decrease in cognitive performance for both groups whereas no significant effect was found after exercise. A significant effect of physical fitness on simple reaction time was noted during exercise. The data are interpreted in terms of optimization of performance focusing particularly on the relations between energy cost of the physical task and attentional demand.
研究了身体素质和能量消耗对运动期间执行的简单反应时间任务的影响。使用了两组，每组10名受试者，一组由受过训练的中长跑运动员组成，另一组由没有定期体育锻炼的学生组成。受试者在蹬自行车测力计上以相当于其自身最大有氧功率的20%、40%、60%和80%的不同相对功率输出进行简单反应时间任务，并且在运动后立即进行。运动期间，结果显示两组的认知表现均下降，而运动后未发现显著影响。在运动期间，注意到身体素质对简单反应时间有显著影响。数据从性能优化的角度进行解释，特别关注体力任务的能量消耗与注意力需求之间的关系。
