研究生: |
陳妙瑋 Miao-Wei Chen |
---|---|
論文名稱: |
壘球擲準動作之運動學分析 The kinematic analyses of softball target throwing performance |
指導教授: |
劉有德
Liu, Yeou-Teh |
學位類別: |
碩士 Master |
系所名稱: |
體育學系 Department of Physical Education |
論文出版年: | 2009 |
畢業學年度: | 97 |
語文別: | 中文 |
論文頁數: | 60 |
中文關鍵詞: | 壘球擲準 、運動學 、角角圖 |
英文關鍵詞: | Softball target throw, kinematics, angle-angle diagram |
論文種類: | 學術論文 |
相關次數: | 點閱:173 下載:16 |
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摘 要
本研究目的為比較不同技能水準之實驗參與者壘球擲準表現與動作型態之差異,藉由運動學分析,探討女壘選手與一般女大學生投擲動作型態普遍上之差異,分別針對選手的正確動作技巧及一般人的錯誤動作型態,進行說明解讀,並對於一般人學習投擲技巧提出具體之建議。八位大專甲組女子壘球選手與八位不具壘球投擲經驗之女大學生為實驗參與者,實驗工作為對著16公尺之目標範圍進行壘球擲準工作,每人投擲15顆,利用高速攝影機(200Hz)與陀螺儀動作分析系統(120Hz)擷取每次投擲動作,以進行各參數的計算分析,並利用Excel、Mathematica軟體製作上肢角度變化圖與肘、肩關節角角圖。發現:比較兩組投擲準確性成績,發現選手組優於一般組達顯著差異t(14)= 6.851, p <.05。比較兩組球速,發現選手組球速大於一般組達顯著差異t(14)=5.684, p <.05。比較兩組出手瞬間跨步前導腳(左腳)膝關節角度之平均值,選手組小於一般組達顯著差異t(13)=-2.932, p<.05。比較兩組球出手瞬間軀幹與水平面夾角及頭部與水平面夾角,雖未達顯著差異但接近顯著差異,皆為選手組大於一般組t(13)= 1.971, p =.089、t(13)= 2.180, p =.070。比較兩組球出手瞬間上肢部位(腕、肘、肩)角速度之平均值,發現肘關節角速度選手組大於一般組達顯著差異t(13)= 2.339, p<.05。製作上肢角度變化圖,觀察後發現選手具有出手前肘關節角度短時間內變小再變大之情形,本研究解讀為「引肘向前」之動作技巧,反觀一般組未曾出現此現象。製作肘、肩關節角角圖,發現選手組與一般組的最大差異來自於起始動作後,「後擺」與「抬肘」之動作型態。依據本實驗目的,經由結果之統計分析與討論,對於一般人投擲動作提出下列建議:進行投擲動作時,除了加強後擺、抬肘,使投擲手引肘向前的動作技巧,亦須注意應將跨步加大以利投擲時身體維持較低之重心,並在投擲動作中,應保持身體往前加速,而避免頭部與軀幹過度後仰。
Abstract
The purpose of the study was to examine the differences in the softball target throwing performances. The movement kinematics was analyzed for the throwing movement from 8 elite women softball players and 8 novice female college students. The participants were required to use the over arm throwing pattern to throw a softball at a target 16 meters away for 15 trials. A high speed (200Hz) camera and the Gypsy18 motion capture system (120 Hz) were used to capture the throwing movement and the ball trajectory; The Microsoft Excel and Wolfram Mathematica were used for processing the data. The results showed that the softball players had significantly more accurate throwing performance than the novices, t(14)= 6.851, p <.05, and a higher ball velocity at release, t(14)=5.684, p <.05. For the throwing movement, the softball players had a significantly smaller knee angle for the lead leg at ball release, t(13)=-2.932, p<.05; the trunk and head angles with respect to the horizontal plane at the ball release were larger, although did not quite reach the significant level, for the softball players, t(13)= 1.971, p =.089, t(13)= 2.180, p =.070. For the kinematics of the throwing arm at ball release, only the elbow angular velocity was found significantly larger for the softball players than the novices, t(13)= 2.339, p<.05. Qualitative analyses on the angular displacement of the elbow joint showed a consistent decrease-increase profile before ball release, characterizing the skill of “lead elbow” which was not found in any novices’ performance. In addition, observation on the angle-angle diagram of the shoulder-elbow joints showed that the differences of the throwing pattern between the 2 groups mainly came from the “back swing” and “elbow lift” segments. Based on the findings of the study, we suggest the following points to be emphasized in teaching target throwing task: for the throwing arm, focusing on the back swing, elbow lift movement and practicing the “lead elbow” technique; for the non-throwing arm movement, the thrower should take a larger forward step and keep the center of gravity low; preventing the head and trunk leaning backward during the throwing movement in order to maintain the forward speed.
參考文獻
中文部份
李易潔、陳妙瑋、嚴雅婷、劉有德(2007,10月)。選手與一般人
在投擲不同高低目標手部關節的差異(摘要)。2007國立台東
大學國際體育學術研討會海報發表。
邱文信(2004)。結合縱貫式與橫斷式方法探討9歲到11歲兒童投
擲距離表現相關因素之研究—以動態系統觀點。國立臺灣體育
學院體育研究所博士論文。
邱文信、劉有德(2004)。以橫斷式方式探討7到21歲學童投擲距離
表現及投擲動作發展。運動心理學論壇暨年會研討會,國立中
正大學。
林俊龍(2005)。棒球投手練習過程的下肢動作協調。國立臺灣體育
學院體育研究所碩士論文。
陳建汎(2004)。手榴彈投擲動作之運動學分析-不同經驗投擲者之
比較。國立臺灣體育學院運動科學研究所碩士論文。
許樹淵(1999)。運動生物力學。台北:合記圖書出版社。
鄭光志、劉有德(2007,10月)。羽球雙打短發球變異性分析(摘
要)。2007國立台東大學國際體育學術研討會海報發表。
外文部份
Bernstein, N. (1967) The co-ordination and regulation of movements.
Pergamon Press, Oxford.
Chen, M.-W.,Lee, I.-C.,Liu, Y.-T.(2008, June)。Examination of a
simplified throwing pattern between different skill levels. Poster
session presented at the annual meeting of the North American
Society for the Psychology of Sport and
Physical Activity, Niagara Falls.
Hore, J., S. Watts, J. Martin, and B. Miller. (1995). Timing of finger
opening and ball release in fast and accurate overarm throws.
Experimental Brain Research 103: 277-286.
Hore, J., Debicki, D. B., & Watts, S. (2005). Braking of elbow extension in fast overarm throws made by skilled and unskilled subjects. Experimental Brain Research, 164(3), 365-375.
Hore, J., & Watts, S. (2005). Timing finger opening in overarm throwing based on a spatial representation of hand path. Journal of Neurophysiology, 93(6), 3189-3199.
Hore, J., O'Brien, M., & Watts, S. (2005). Control of joint rotations in overarm throws of different speeds made by dominant and nondominant arms. Journal of Neurophysiology, 94(6), 3975-3986.
James J. Gibson (1977), The Theory of Affordances. In Perceiving, Acting, and Knowing, Eds. Robert Shaw and John Bransford, ISBN 0-470-99014-7.
Jegede, E., Watts, S., Stitt, L., & Hore, J. (2005). Timing of ball release in overarm throws affects ball speed in unskilled but not skilled individuals. Journal Sports Sciences, 23(8), 805-816.
Kreighbaum, E., & Barthels, K.M. (1996). Biomechanics-a qualitative
approach for studying human movement (4th ed.). Boston: Allyn and
Bacon.
Newell, K. M. (1985). Coordination, control and skill. In D. Goodman,
R. B. Wilberg, & I. M. Franks (Eds.), Difference perspective in
motor learning, memory, and control (pp. 295-317). Amsterdam:
North-Holland.
Newell, K. M. (1986). Constraints on the development of coordination. In
M. G. A. Wade & H. T. Whiting (Eds.), Motor development in
children: Aspects of coordination and control .Amsterdam:
Martius Nijhoff.
Watts, S., Pessotto, I., & Hore, J. (2004). A simple rule for controlling overarm throws to different targets. Experimental Brain Research, 159(3), 329-339.