|作品名稱（其他語言）||Contextual interference effect on the acquisition and retention of table tennis skills|
The purpose of this study was to explore the effect of contextual interference on the acquisition of table tennis forehand knuckle service skills at three different placement points (left, center, and right) and at three separate stages: pre-test, acquisition stage, and retention. The subjects of this study were 75 female high school students from the physical education table tennis class offered by the Shilin High School of Commerce, none of whom had formerly received professional table tennis training. The average age of those assessed was 15.81 (±0.53) years; the average height was 158.77 (±6.07) cm; and the average weight was 52.06 (±0.77) kg. The subjects were placed randomly into four separate groups: the blocked practice group (n=18), the serial practice group (n=19), the random practice group (n=19), and the control group (n=19). The experiment involved variables of high, medium, and low Contextual interference during training, and participants scored points based on varying levels of interference. It incorporated an even-training format (wherein both parties performed identical strokes) as well as separate group training sessions that prevented mutual interference. The experiment consisted of 11 sessions over six weeks and tests were conducted in the first week (experiment-initial), fifth week (experiment-final), and sixth week (post-experiment). The results were then analyzed using Two-way Analysis of Variance. If the analysis produced a marked contrast between causal factors, a test of simple-main effect would be applied. If the subsequent results again rendered a noticeable difference between causal factors, the Bonferroni Correction method would be employed. The results of the experiment showed that in the experiment-final (skill acquisition) and post-experiment (retention) phases, the random practice group consistently outperformed the serial practice group, while the serial practice group in turn outperformed the blocked practice group. Moreover, the random practice, serial practice, and blocked practice groups all recorded better results than the control group. This study therefore concludes that the high-level Contextual interference experienced by the random practice group is conducive to increased levels of accuracy in the acquisition of table tennis skills.
|關鍵字||背景干擾;Contextual interference;技能獲得;Skill acquisition;技能保留;Skill retention|