结果知识和任务复杂性在运动技能获得中的相对频率。

Relative frequency of knowledge of results and task complexity in the motor skill acquisition.

机构信息

Universidade Presbiteriana Mackenzie, Centro Universitário Nove de Julho, Brazil.

出版信息

Percept Mot Skills. 2009 Dec;109(3):831-40. doi: 10.2466/pms.109.3.831-840.

DOI:10.2466/pms.109.3.831-840

PMID:20178283

Abstract

The aim of this study was to investigate the effects of knowledge of results (KR) frequency and task complexity on motor skill acquisition. The task consisted of throwing a bocha ball to place it as close as possible to the target ball. 120 students ages 11 to 13 years were assigned to one of eight experimental groups according to knowledge of results frequency (25, 50, 75, and 100%) and task complexity (simple and complex). Subjects performed 90 trials in the acquisition phase and 10 trials in the transfer test. The results showed that knowledge of results given at a frequency of 25% resulted in an inferior absolute error than 50% and inferior variable error than 50, 75, and 100% frequencies, but no effect of task complexity was found.

摘要

本研究旨在探讨结果知识（KR）频率和任务复杂性对运动技能获得的影响。任务是将一个波奇球扔到尽可能靠近目标球的位置。120 名年龄在 11 到 13 岁的学生根据结果知识频率（25%、50%、75%和 100%）和任务复杂性（简单和复杂）被分配到八个实验组之一。在获得阶段，受试者进行了 90 次试验，在转移测试中进行了 10 次试验。结果表明，与 50%和 75%、100%的 KR 频率相比，25%的 KR 频率导致绝对误差更小，但与 50%的 KR 频率相比，其 KR 频率的变化误差更小，但任务复杂性没有影响。