不同球質棒球投手生物力學特性之探討

Biomechanical Characteristic of Baseball Pitcher with Different Pitching Quality

劉強(Chiang Liu) ； 江昆達(Kun-Da Chiang) ； 龔榮堂(Jung-Tang Kung) ； 相子元(Tzzy-Yuang Shiang) ； 吳健龍(Chien-Long Wu)

《運動教練科學》 10期 (2008/07) Pp. 57-64

https://doi.org/10.6194/SCS.2008.10.04

摘要

Introduction: According to literature review, there are some factors that result in pitching quality such as pitching mass, pitching velocity, ball flying trajectory. In order to evident this hypothesis, we set up two experiments. The purpose of first experiment was to investigate impact force between heavy-and light-pitching quality pitchers. Another purpose was to exam middle velocity, ending velocity, flying trajectory at swing area between different pitching quality pitchers. Method: In first experiment, two pitchers with different pitching quality pitched ball to a force plate from 10, 12, 14 meters away. In second experiment, 2000Hz high speed camera was used to record flying trajectory from two members of national baseball team during 2006 intercontinental cup. Results: The results shown that the impact force were not significant difference among heavy-and light-pitching quality pitchers (p＞.05). Light-pitching quality pitcher has lower velocity decreased. However, Heavy-pitching quality pitcher has bigger change flying trajectory. Conclusion: The results suggest that pitching quality is consider as change of ending velocity and fly trajectory.

關鍵字

投球品質 ； 尾速 ； 飛行軌跡

並列摘要

Introduction: According to literature review, there are some factors that result in pitching quality such as pitching mass, pitching velocity, ball flying trajectory. In order to evident this hypothesis, we set up two experiments. The purpose of first experiment was to investigate impact force between heavy-and light-pitching quality pitchers. Another purpose was to exam middle velocity, ending velocity, flying trajectory at swing area between different pitching quality pitchers. Method: In first experiment, two pitchers with different pitching quality pitched ball to a force plate from 10, 12, 14 meters away. In second experiment, 2000Hz high speed camera was used to record flying trajectory from two members of national baseball team during 2006 intercontinental cup. Results: The results shown that the impact force were not significant difference among heavy-and light-pitching quality pitchers (p＞.05). Light-pitching quality pitcher has lower velocity decreased. However, Heavy-pitching quality pitcher has bigger change flying trajectory. Conclusion: The results suggest that pitching quality is consider as change of ending velocity and fly trajectory.

並列關鍵字

pitching quality ； ending velocity ； flying trajectory

參考文獻

邱靖華(2003)。棒球變化球之飛行分析。興大體育。7，83-92。

高英傑(1996)。國立體育學院教練研究所技術報告書。桃園縣:國立體育學院。

陳仲仁(2001)。棒球於不同速度撞擊下恢復係數變化之研究。國立體育學院教練研究所。

Adair, R. K.(2002).The physics of baseball.Harper Collins Publishers Inc..

Alaways, L. W.,Hubbard, M.(2001).Experimental determination of baseball spin and lift.Journal of sport sciences.19,349-358.