| Summary: | 碩士 === 臺北市立大學 === 競技運動訓練研究所碩士在職專班 === 103 === Purposes: The aim of this study was to investigate the effect of self-receiving of chief spikers on the dividing rate of gain and loss from attack in the 2014 Enterprise Volleyball League. Methods: Data were collected from the videos of five teams participated in the 2014 Enterprise Volleyball League, and overall 27 matches, 102 sets were recorded and analyzed. The dividing rate of gain and loss of chief spikersfrom attack were calculated from the number of receiving, attack, gain and loss from attack in each game and the differences with or without self-receiving were defined by student t-test analysis by SPSS software. Moreover, the relationship between the dividing rate of gain and loss after self-receiving and win games were analyzed by Pearson’s correlation coefficient test.Results: 1. Data from all spikers showed self-receiving led to 6% decrease and 4% increase in the dividing rate of gain and lose, respectively. However, this effect had no statistical significance. 2. Summary of individualspiker showed only #1 spiker from the National Training Center team presented statistical decrease in the dividing rate of lose after self-receiving (10%±14%) compared to that without self-receiving (20%±12%). Other spikers also showed differences; however, the variation of average was too large to find statistical difference.2. Data from mutual competition record showed the spikers from teams in leading position (Taipower and National Training Center) displayed increase in the dividing rate of gain and decrease in the dividing rate of loss, suggesting the strategy of serving to spiker was not effective. On the other hand, the spikers from teams fell behind showed decrease in the dividing rate of gain and increase in the dividing rate of loss, indicating the strategy of serving to spiker was useful. Conclusion: The dividing rate of loss from spikerswas affected by self-receiving, serving to spikers of competitor is a valid strategy especially for spikers of immature technique, but not for highly skilled spikers.
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