著者

小谷 究

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.59, no.2, pp.497-511, 2014 (Released:2014-12-20)

参考文献数

76

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This study focused on the defensive strategies employed in Japanese competitive basketball in the 1920s and 1930s with the intention of clarifying the process through which the “five-man two-line defense”, a type of man-to-man defense, became a mainstream tactic after first examining the factors behind the decline in the number of teams employing the “3-2 zone defense”, a defensive strategy first introduced by Waseda University.   The study results can be summarized as follows. 1.  The 3-2 zone defense was introduced in Japan in 1924 and proved highly effective at the time; however it gradually fell from favor. The reasons for its decline included the use of high post play, an offensive strategy that proved effective against a 3-2 zone defense, an increase in the size of the court, and the fact that there were fewer leaders who could teach team members the difficult-to-learn 3-2 zone defense. 2.  Teams employing a five-man two-line defense man-to-man variation as a substitute for the 3-2 zone defense began to emerge in Japan from around 1926. However, this latter tactic had drawbacks due to the role of each position. For this reason, many teams adopted a five-man two-line defense zone defense formation, which is essentially the same as the nearest man-to-man defense, as it was able to eliminate the drawbacks of the five-man two-line defense man-to-man variation. The five-man two-line defense zone defense formation was a defensive strategy that was not significantly affected by high post play or the expanded court size, and that could be learned easily even when few leaders were available to provide complex tactical directions. As a result, the five-man two-line defense zone defense formation overcame the factors that rendered the 3-2 zone defense ineffective, and was widely adopted by domestic teams.

著者

小谷 究

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.59, no.2, pp.497-511, 2014

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&nbsp;&nbsp;This study focused on the defensive strategies employed in Japanese competitive basketball in the 1920s and 1930s with the intention of clarifying the process through which the &ldquo;five-man two-line defense&rdquo;, a type of man-to-man defense, became a mainstream tactic after first examining the factors behind the decline in the number of teams employing the &ldquo;3-2 zone defense&rdquo;, a defensive strategy first introduced by Waseda University.<br> &nbsp;&nbsp;The study results can be summarized as follows.<br> 1.&nbsp;&nbsp;The 3-2 zone defense was introduced in Japan in 1924 and proved highly effective at the time; however it gradually fell from favor. The reasons for its decline included the use of high post play, an offensive strategy that proved effective against a 3-2 zone defense, an increase in the size of the court, and the fact that there were fewer leaders who could teach team members the difficult-to-learn 3-2 zone defense.<br> 2.&nbsp;&nbsp;Teams employing a five-man two-line defense man-to-man variation as a substitute for the 3-2 zone defense began to emerge in Japan from around 1926. However, this latter tactic had drawbacks due to the role of each position. For this reason, many teams adopted a five-man two-line defense zone defense formation, which is essentially the same as the nearest man-to-man defense, as it was able to eliminate the drawbacks of the five-man two-line defense man-to-man variation. The five-man two-line defense zone defense formation was a defensive strategy that was not significantly affected by high post play or the expanded court size, and that could be learned easily even when few leaders were available to provide complex tactical directions. As a result, the five-man two-line defense zone defense formation overcame the factors that rendered the 3-2 zone defense ineffective, and was widely adopted by domestic teams.<br>

著者

小谷 究 清水 貴司 松尾 晋典 KOTANI Kiwamu SHIMIZU Takashi MATSUO Shinsuke コタニ キワム シミズ タカシ マツオ シンスケ

出版者

広島文化学園大学社会情報学部

雑誌

社会情報学研究 : 広島文化学園大学社会情報学部紀要 (ISSN:13418459)

巻号頁・発行日

vol.17, pp.63-75, 2011

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The purpose of this study was to examine statistically the relationship between the shooting position and the place of getting rebounds. For the object, We selected randomly 16 games in the men's top league of university. For the method, We videotaped the games. We divided the court into 5 areas by the angles of the shot and 6 areas by the length of the shot and tally up the data of shooting position and the place of getting rebounds. We analyzed the data by Pearson's correlation analysis, and examined with thepercentage of the rebounds. The results are the following.1)For all the angles of the shot, as the length of the shot gets longer, the distance of the rebound becomes longer.2)For 3 point shots, as the shooting angle gets closer to the left corner, the length of rebound becomes longer.3)For the shot over 3.75 meters, the angle of rebound is same as the angle shot on the help-side.4)As the length of the shot gets longer at the right corner, the angle of the rebound becomes closer to help-side corner. From the above results, it revealed statistically the relationship between the shooting position and the place of getting rebounds. In conclusion, it was suggested that when the team control the place of getting rebounds, it was related to getting more rebounds and the possibility leading to ascendancy in the game.