INFLUENCE OF PHYSICAL EXERCISE ON CHOICE REACTION TIME IN SPORTS EXPERTS : THE MEDIATING ROLE OF RESOURCE ALLOCATION
INFLUENCE OF PHYSICAL EXERCISE ON CHOICE REACTION TIME IN SPORTS EXPERTS : THE MEDIATING ROLE OF RESOURCE ALLOCATION
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体育锻炼对体育专家选择反应时间的影响：资源分配的中介作用
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
D. Delignières
中科院分区：
文献类型：
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作者：
D. Delignières
本实验旨在分析体力消耗对体育专家决策过程的影响。40名受试者参与了实验。第一组（N=20）是由击剑运动员和击剑大师，第二组（N=20）的科目谁练习运动，但谁没有专业知识的决定性运动。两组在身体状况上没有差异。当受试者以自身最大有氧功率的20%、40%、60%和80%的相对功率蹬踏回旋功率计时，必须执行两个选择反应时任务（2-RT和4-RT）。收集表现分数，并在所有条件下，要求受试者评估反应时间任务的难度。结果显示，对于专家来说，随着体力消耗的增加，表现单调增加。相反，非专家组的表现恶化的努力增加。在所有条件下，每组的错误率保持稳定。最后，专家评估的任务比非专家更难，特别是在高强度的努力。这些结果表明，专家在高体力消耗下的决策任务绩效的提高与额外的资源投资有关。关键词：体力消耗、信息加工、资源分配、知觉困难。
This experiment was performed in the aim of analyzing the influence of physical exertion on decisional processing in sports experts. 40 subjects were involved in the experiment. The first group (N=20) was composed of fencers and fencing masters, the second (N=20) of subjects who practised sport but who had no expertise in decisional sports. The two groups did not differ in physical condition. While pedalling on a cycloergometer at relative powers corresponding to 20, 40, 60 and 80% of their own maximal aerobic power, the subjects had to perform two choice reaction time tasks (2-RT and 4-RT). Performance scores were collected, and for all conditions, subjects were asked to assess the difficulty of the reaction time task. The results showed, for the experts, a monotonic increase in performance, as physical exertion increased. On the contrary, the performances of the non-expert group deteriorated as exertion increased. The error rate remained stable for each group over all conditions. Finally, the experts assessed tasks as more difficult than the non-experts, especially at high levels of exertion. These results showed that the improvement of the experts' performances in decision tasks under high physical exertion was related to an additional resource investment. Key-words: Physical exertion, information processing, resource allocation, perceived difficulty.