Chao-Ming Huang*｜Jhong-Shan Elementary School, Yilan City｜stanely503@gmail.com
Yu-Hau You｜San-Shing Elementary School, Yilan City
Wen-Hsuan Cheng｜Jhong-Shan Elementary School, Yilan City
Shun-Heng Sung｜Jhong-Shan Elementary School, Yilan City
*Corresponding author
▌Abstract
Hitting a baseball is the most difficult and complex skills in sport. If a pitcher throws a 130kph fastball and it will reach the home plate in 0.3-0.5 seconds. In other words, the hitter have mearly 0.3-0.5 seconds to make a decision (swing or not swing) and complete the process of swing bat. Bat swing speed is one of pivotal factors which related to batting performance. This study tried to apply a mobile technology (3D motion sensor) to explore the difference between senior and junior baseball team players in bat swing outcomes. The senior group players (n=10) those who join the national baseball tournament. And the junior group players (n=17) those who join the team less than one year.
The finding indicated that the senior group revealed the significant difference between two groups, includes, bat barrel speed, arm speed and barrel vertical angle. Besides, the Pearson’s correlation revealed that speed of swing barrel was related to arm speed, barrel vertical angle significantly. According to the analysis of one-sample t-test, it indicated that the junior group showed the significant difference in barrel speed, arm speed, barrel vertical angle and barrel attack angle. The finding providing the evidence of bat swing practice. In the future, with the aid of mobile technology, the coach not only can obtain these bat swing information in realtime, but also use these data and design efficient training plan, moreover, this could enhance players’ cognitive knowledge, met cognition and batting performance.
Keywords: Mobile Learning, Physical Education, Baseball