黃昭銘
宜蘭縣宜蘭市中山國民小學
Email：stanely503@gmail.com
游育豪
宜蘭縣三星鄉三星國民小學
鄭文玄
宜蘭縣宜蘭市中山國民小學
宋順亨
宜蘭縣宜蘭市中山國民小學
Abstract
This study tried to explore the difference between senior and junior 4th grader baseball team player 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 gourp 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 siginificant difference in barrel speed, arm speed, barrel vertical angle and barrel attack angle. The finding providing the evidence of bat swing practice, moreover, the coach can use these data and design efficent training plan, moreover, this could enhance players’ batting outcomes.
Keywords :Mobile learning, physical education, baseball