EFFECTS OF REDUCED FREQUENCY OF KNAWLEDGE OF RESULTS ON THE LEARNING OF ELBOW FLEXION MOVEMENT

• Main Authors: Yang Pei-Ling, 楊佩玲
• Other Authors: Zhao Rong-Rui
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/34833819831596107474

碩士 === 國立臺灣體育學院 === 體育研究所 === 98 === 　　The purpose of this study was to investigate the learning effect of elbow flexion movement through the various manipulations of the reduced knowledge of results (KR) for adolescent. Fifty voluntary participants, 23 female and 27 male (mean age = 14.5 years), were assigned randomly to 100 percent KR frequency group, 20 percent KR frequency group, 10 percent KR frequency group, performance-based bandwidth group, and the control group of performance-based bandwidth. All participants were asked to operate and to learn the Biometrics E-Link system for 57 degrees of elbow flexion. After 100 trails of acquisition, every participant was assessed the learning effects by immediate retention test, delay retention test, 41 degrees of elbow flexion immediate transfer test, and 41 degrees of elbow flexion delay transfer test. The angle of elbow flexion was acquired by Biometrics E-Link system and was used to calculate the error scores: constant error, absolute error, total variability, variable error, and coefficient of variable error. 5 (group) × 2 (test) Mixed-design two way ANOVA and Duncan post-hoc comparison were used to test the statistical difference. The results of retention test showed there was no groups difference for variable error (p > .05), but the immediate retention test was lower than delay retention test (p < .05). The constant error of 100 percent KR frequency group was the largest in immediate retention test (p < .05), but there were no group difference in delay retention test (p > .05). There were no group differences for transfer test (p > .05). It indicated that high KR frequency was the performance variable for the adolescent to acquisition the skill of elbow flexion. For the techniques of reduce augmented feedback frequency, the constant to provide KR (the control group of performance-based bandwidth and the groups of lower KR frequency) and the fading technique (performance-based bandwidth group) were benefit for motor learning.