- 期刊
棒球打擊者選球能力之初步研究：以參加2006第十六屆洲際盃棒球賽中華隊為例
A Preliminary Study of Plate Discipline Ability for Baseball Batters: A Case Study of Chinese Taipei Baseball Team during 2006 XVI Baseball Intercontinenal Cup
摘要
研究背景：影響打擊能力的表現因素有打擊者本身肌力、擊球技巧、選球能力、球感、對方投手實力、及投捕配球模式等。其中，選球能力是成為一個良好擊球員最重要與最基本的條件之一。但是，過去並未針對此部分進行實際的數據驗證，因此選球能力的好壞是否影響擊球員在打擊上的表現尚未有定論。研究目的：本研究之目的以2006年第十六屆洲際盃棒球賽為研究之賽事，來探討國內優秀之棒球擊球員選球能力與個人打擊率成績的關係。研究方法：本研究以2006年第十六屆洲際盃棒球錦標賽之中華成棒隊之12位擊球員為研究對象，以現場記錄法完整記錄選手打擊情形，並透過轉播單位提供影帶，再由三位從事棒球運動球齡及訓練二十年以上之觀察者，進行影片資料的記錄與核對，此外也蒐集國際棒總（IBAF）所公佈之比賽記錄，作為資料比對之用。本研究中對「好的選球能力」定義為好球揮擊與壞球不揮，「差的選球能力」定義為好球未揮與壞球揮擊。以描述性統計之頻率次數記錄出場數、打數、安打數、好球揮擊、壞球不揮、好球未揮、及壞球揮擊之次數及比率，再運用皮爾森積差相關（Person correlation）及簡單線性迴歸（Simple linear regression）分析好球揮擊、壞球不揮、好球未揮、壞球揮擊、好的選球能力、及差的選球能力比率與打擊率之相關性。結果與結論：全隊的平均打擊率為0.24，「好的選球能力」為68.38±4.79%，好球揮擊比率30.39±4.79%，壞球不揮比率為37.99±3.77%，「差的選球能力」為31.61±4.79%，好球未揮比率為18.66±4.16%，壞球揮擊比率為12.96±3.17%。中華隊擊球員之「好的選球能力」比「差的選球能力」比率高約兩倍。「壞球揮擊」與「差的選球能力」與打擊率具有中度負相關，表示「壞球揮擊」與「差的選球能力」比率愈低，打擊率越高。好球揮擊、壞球不揮、好球未揮、及「好的選球能力」與打擊率無相關性。「打擊率」（Y）與「壞球揮擊」（X）之迴歸方程式為Y=（-0.023）X+0.543，「打擊率」（Y）與「差的選球能力」（X）之迴歸方程式為Y=（-0.008）X+0.482，由此兩公式可預測擊球員打擊率的高低。本研究中的變數－「壞球揮擊」及「差的選球能力」的資料，可以應用在大學體育科系棒球項目獨立招生、職業棒球隊選秀、選擇國家隊國手時，作為評鑑棒球運動擊球員的指標之一及棒球運動優秀擊球員選材的方式。
並列摘要
Background: Many factors would affect the hitting ability. The plate discipline is the most important factor to affect hitting ability. However, few studies related plate discipline was to research. Purpose: the purpose of this study was to determine the relationship between ability of plate discipline and batting average for elite baseball batters from Chinese Taipei Team during 2006 XVI IBAF Intercontinental Cup. Methods: The ability of plate discipline was recorded by 3 senior observers. The data were extracted from video and IBAF. The excellent ability of plate discipline was including ”swing-strike” and ”no swing-ball”. The poor ability of plate discipline was including ”no swing-strike” and ”swing-ball”. The Games Played, At Bats, Hits, swing-strike, no swing-ball, no swing-strike, swing-ball were recorded the frequency. Persons' correlation and simple linear regression were used to analyze relationship between ability of plate discipline and batting average. Results and Conclusion: The batting average of all batters was 0.24. The excellent ability of plate discipline had 68.38±4.79% in all ability of plate discipline, and poor ability of plate discipline was 31.61±4.79%. Swing-strike and no swing-ball were 30.39±4.79% and 37.99±3.77%, respectively. No swing-strike and swing-ball were 18.66±4.16% and 12.96±3.17%, respectively. There was twice ratio between excellent and poor ability of plate discipline for Batters of Chinese Taipei baseball Team. There was moderately negative relationship between ”Swing-ball” and batting average. The same results were found between ”Poor ability of plate discipline” and batting average. Lower ratio of ”Swing-ball” and ”Poor ability of plate discipline”, higher batting average. The regression equation from batting average(Y) and swing-ball(X) was Y= (-0.023) X+0.543. The regression equation from batting average(Y) and poor ability of plate discipline(X) was Y= (-0.008) X+0.482. The variables --”Swing-ball” and ”poor ability of plate discipline” could be as predictive factors to look for elite batters.