| Summary: | 碩士 === 中國文化大學 === 運動教練研究所 === 91 === The Analysis of Relavent Factors on Baseball Batting Performance and Swing Time
Abstract
The purpose of this study is to explore a baseball hitter’s swing time and whole body reaction time at different pitching speed. We analyzed and discussed a hitter’s swing time, the relationship between swing time and batting average, whole body reaction time and batting average, and whole body reaction time and swing time. Using product-moment correlation analysis, we collected and examined 15 testers’ basic data. We employed experimental equipments to measure whole body reaction time. Besides, we examined swing time at different pitching speed, calculated batting average of a year, and investigated the relationship among swing time, whole body reaction time and batting average.
The average age of the 15 testers was 29.9, average height was 176.5 cm, average weight was 81.7 kg, and average year as a baseball player was 19. The testers were asked to swing as the pitching machine pitched at two different speed, 120km/hr and 130km/hr, respectively. We recorded the tester’s swing movement with a video camera. Then, we examined his swing time and used whole body reaction timer to measure the whole body reaction from different angles. A product-moment correlation analysis was employed to determine whether the variables were correlated. The results are as follows:
(1) A significant correlation was found between whole body reaction time and batting average (P<.05).
(2) A significant correlation was found between whole body reaction time and swing time at different pitching speed (P<.05).
(3) A significant correlation was also found between swing time and batting average (P<.05).
(4) From the results described above, there exists a strong association between whole body reaction time and swing time. It is one of the most important factors that would influence the hitter’s batting average.
Key words: swing time, batting average, whole body reaction time.
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