Doyoun Kim

The Effect of PNF Stretching with Elastic Band on Ball Speed of High School Baseball Players

The purpose of this study was to evaluate the effect of thoracic dynamic stretching with elastic band on the ROM and ball speed for baseball player. For this purpose, 11 baseball players of the I city high school and university performed thoracic dynamic stretching with elastic band before throwing a ball. After stretching, we measured the ROM and ball speed and compared. The results were as follows. First, ROM after stretching showed a significant increase immediately compared with before stretching. Second, the speed of the ball was significantly increased after stretching compared with before. These results indicated that thoracic dynamic stretching with elastic band for baseball players might have a positive effect on ball speed as well as ROM.

Development of Evaluation Method for Competition Intelligence of Sport Talented Children

Abstract Sport talent development center have been operating in order to support sports gifted children of the training in the early finding and selecting potential elementary school students for sports. For this purpose, elementary students in grades 2~6 are selected through basal fitness and physique test. However qualitative assessment of the student was not in progress, but depending on current physique and fitness totally sports talented children were selected. Therefore this study was to develop a tool to determine giftedness based on the observation method to assess the athletic potential of gifted children based on Yoons competition intelligence(2011). For this purpose of study, sub-factors were extracted through expert consultations. Based on the extracted sub-factors, such as training intelligence, learning ability practical intelligence were extracted for practical intelligence, and finally 16 evaluation questions were proposed to evaluate sports talented children. Proposed questions will be helpful for quality evaluation of sports gifted children, as well as using as a method for discovering sports gifted children.