| Summary: | 碩士 === 國立臺灣師範大學 === 體育研究所 === 90 === This research compares junior high school soft tennis players of different levels of skill under circumstances of different pre-cues in anticipation of forehand strokes from the opponent as to the making decision time and decision accuracy in order to prove that the ability of anticipation is an important quality in a high-level athlete and to identify the important cues that influence the ability of anticipation. The subjects(N=48) in this research, the average height was 163.94±8.52 cm, and the average weight was 56.25±11.44 kg, and the average age was 15.31±0.95 , and the average length of playing soft tennis was 3.56±2.44 years. With Computer Aided Motion Analysis Learning System, the movie is processed into 5 temporal occluded film conditions－a total of 60 pictures about strokes by employing temporal occlusion. The results of the research are as follows：The making decision time of “frames subsequent to ball-racquet contact” is significantly better than “2 frames prior to ball-racquet contact”. The making decision time of Superior Group, Average Group, Basic Group were all significantly better than Control Group. Further more, in Superior Group, Average Group and Basic Group, the making decision accuracy of “frames subsequent to ball-racquet contact” is significantly better than “two frames prior to ball-racquet contact”. At “three frames subsequent to ball-racquet contact “, the making decision accuracy of Superior Group is significantly better than Average Group and Basic Group and Control Group. At “2 frames subsequent to ball-racquet contact “ and “1 frames subsequent to ball-racquet contact “ and ”at the point of the ball racquet contact ”, the making decision accuracy of Superior Group and Basic Group and Control Group were all significantly better than Control Group.
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