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題名 | 比賽時間與比分對三分球投籃之影響=The Influence of Match Time and Score on Three-point Shot Decision Policy |
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作 者 | 曾國棟; 李易潔; 劉有德; | 書刊名 | 臺東大學體育學報 |
卷期 | 12 2010.06[民99.06] |
頁次 | 頁1-12 |
分類號 | 528.952 |
關鍵詞 | 籃球; 比賽分析; 動態紀錄; 得分方式; Basketball; Match analysis; Dynamic record; Score type; |
語文 | 中文(Chinese) |
中文摘要 | 本研究主要目的在探討美國職業籃球(National Basketball Association, 簡稱NBA)三分球投籃決策時機。自1984年國際籃球總會FIBA增訂三分球規則,三分球成為各隊拉大比分及追分的重要武器,同時拉大進攻範圍、牽制禁區協防,使得比賽更多變、更加精彩,並成為選手必備的籃球技能之一。過去透過比賽攻守紀錄來對球隊分析,多以整場比賽之攻守數據作探討,對於比賽過程中攻守方式、打法、戰術等各項變化無法得知,因此本研究以NBA網站上2009-2010年例行賽比賽完整記錄(play-by-play)作為資料來源,運用Mathematica數學軟體做資料轉換,分析整場比賽過程2880秒與比分對三分球投籃之影響,藉以瞭解三分球在NBA的運用。結果發現,三分球投籃並非平均運用在各節中,在第一節三分球投籃次數少於其他各節,及在第四節三分球投籃次數顯著高於其他各節。在每節最後2分鐘都會有一波三分球投籃高潮。此外,以比分差距探討三分球投籃次數之變化,發現比分差距落後4-9分時,多數球員企圖以三分球來追分,且在第四節時落後球隊三分球投籃次數顯著高於領先球隊。結論:決策三分球投籃同樣受到比賽時間與分數的動態變化所影響。利用動態紀錄來探討比賽過程,呈現更豐富的內容。 |
英文摘要 | The purpose of this research was to analyze the three-point shot decision policy in National Basketball Association (NBA). Since the International Basketball Federation (FIBA) introduced the three-point line in 1984, three-point shot has become the crucial means to enlarge the leading range or to mend the score gap. Meanwhile, three–point shots allow players to expand the field goal range and impede the painted-area defense, making a game highly changeable and more exciting, which turn three-point shot skill a requisition to every player. Regarding that offensive and defensive records are incapable of manifesting the detail, this research took all the play-by-play game records (obtained from NBA official website) in the regular seasons of 2009-2010 as data resource and analyzed each three-point shooting moment in a 2880-second game, expecting to gain initial understanding of the three-point shot decision policy in NBA. The result showed that three-point shots are widely applied in each game. Furthermore, the three-point shot frequency in the first quarter is lower than the other three while it in the fourth quarter is significantly higher than any other. In the respect of shooting time, a climax of three-point shots appears in the last two minutes in each quarter; in the respect of score gap, the team that fell behind made more three-point shots, which is particularly significant in the fourth quarter. The conclusion is time and score gap both influence the three-point shot decision policy, which further manifests the importance of a detailed game record analysis in athletics. A play-by-play dynamic record can return the original condition of the game and facilitate detail analyses. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。