Throwing Distance as a Function of Overhand Throwing Pattern in Adolescent

• Main Authors: Kai-Chao Chang, 張凱朝
• Other Authors: Ti-Yu Chen
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/4ka57b

碩士 === 國立彰化師範大學 === 運動學系 === 102 === ABSTRACT The purpose of this study was to exam the effects of adolescents’ different overhand throwing patterns on throwing distance. 300 participants who aged 13 and 15 year-old performed in this study. By recording their overhand throwing patterns and throwing distances with SONY camera, the segmental analysis of records was determined by professional PE teachers with Roberton’s Developmental Sequence. Chi-square test was used on the statistic of the research to generate the number percentage distribution pattern of the participants with different age and developing sequence. Two-way analysis of variance of independent sample and Duncan’s posteriori comparison were also conducted to analyze the effects of adolescents’ overhand throwing patterns and age on throwing distance (α=0.5). The results indicated that male participants shown similar number percentage distribution patterns of each development sequence. Despite age difference, female participants had shown the same result as leaving the trunk part out of consideration. As regarding the throwing distances, the male participants who were older or had higher development sequence had a better performance. On the other hand, the performance of female participants was varied by throwing level. Furthermore, 15-year-old female participants used total trunk rotation throwing farther than younger ones. 13-year-old female participants did better by using differentiated rotation. In addition, 13- year-old female participants who used differentiated rotation would throw farther than those same age ones who implemented total or no trunk rotation. Meanwhile, to compare to the older, the younger female participants in the group of highest development sequence had better performance. In conclusion, to compare to age, throwing patterns were major effects on throwing distance