Travlos A K, Marisi D Q
Department of Physical Education and Sport Studies, University of Alberta.
Percept Mot Skills. 1995 Feb;80(1):15-26. doi: 10.2466/pms.1995.80.1.15.
To examine the effects of increasing amounts of exercise on attention and speed of information processing 20 paid male subjects were separated into groups of high and low fitness according to their VO2max values. The experiment involved an attentional task (Random Number Generation) that was given after every 10 min. of cycling at work-load resistances calculated as 40%, 50%, 60%, 70%, and 80% of individual VO2max values. An eight-choice reaction time-movement time task was given before and after exercise as well as after a 15-min. recovery period. Individuals were tested within 10 min. after exercise cessation (exhaustion) for concentration and within 15 min. for choice reaction time and movement time to assess whether fitness differentially interacted with these variables. Split-plot factorial analyses of variance suggested that the CNS appeared capable of maintaining performance after 50 min. of exhaustive exercise compared to values obtained at the preexercise condition. A 15-min. recovery period significantly impaired MT but relatively highly fit individuals did not appear to perform the choice RT and concentration tasks better than individuals low in fitness.
为了研究运动量增加对注意力和信息处理速度的影响，根据最大摄氧量（VO2max）值，将20名有偿参与实验的男性受试者分为高体能组和低体能组。实验包括一项注意力任务（随机数字生成），该任务在以个体VO2max值的40%、50%、60%、70%和80%计算的工作负荷阻力下骑行每10分钟后进行。在运动前后以及15分钟的恢复期后进行一项八选一反应时间 - 动作时间任务。个体在运动停止（疲劳）后10分钟内测试注意力集中度，在15分钟内测试选择反应时间和动作时间，以评估体能是否与这些变量有不同的相互作用。裂区析因方差分析表明，与运动前条件下获得的值相比，中枢神经系统（CNS）在50分钟的力竭运动后似乎能够维持表现。15分钟的恢复期显著损害了动作时间（MT），但体能相对较高的个体在选择反应时间（RT）和注意力集中度任务上的表现似乎并不比体能低的个体更好。
