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The movement of CG during 3-point shots in experienced players with high 3-point shot success rates was compared with that in inexperienced players with low success rates. The subjects were selected from 52 members of a university women’s basketball team. The experienced group comprised 6 players subjectively evaluated to have high 3-point shot success rates by 2 coaches accredited by the Japan Sports Association as advanced coaches. The inexperienced group comprised 6 players subjectively evaluated as having poor 3-point shot success rates by the same coaches. CG movement during a 3-point shot was measured using a two-dimensional direct linear transformation method. The 3-point shot success rate for each group was calculated from 100 attempts and the success rate was significantly higher in the experienced group(72.8±4.7% vs. 35.8±6.6%, p\u003c0.05). To compare differences in shooting motion between the experienced and inexperienced groups, the following phases of the 3-point shot were established:(1) stance → catch,(2) catch → set,(3) stance → set,(4) set → release,(5) release → maximum, and(6) set → maximum. The main results of the present study were as follows: 1. In the experienced group, vertical displacements of CG were significantly smaller in the stance → catch, set → release, release → maximum, and set → maximum phases, while horizontal displacements of CG were also significantly smaller in the stance → catch, catch → set, stance → set, and set → maximum phases(p\u003c0.05). 2. In the experienced group, vertical acceleration of CG was significantly smaller in the stance → set, set → release, and set → maximum phases, while horizontal acceleration was also significantly smaller in the stance → set phase(p\u003c0.05). 3. In the experienced group, vertical displacements of the tragion were significantly smaller in the stance → catch and set → maximum phases, while horizontal displacements of the tragion were significantly smaller in the catch → set and stance → set phases (p\u003c0.05). 4. Significant negative correlations were found between 3-point shot success rate and vertical displacement of CG in the set → release and set → maximum phases, horizontal displacement of CG in the stance → set phase, vertical displacement of the tragion in the stance → catch phase, and horizontal displacement of the tragion in the catch → set and stance → set phases(p\u003c0.05). 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バスケットボール競技における3ポイントシュート成功率と重心変位との関係 : 大学女子プレーヤーを対象として
https://doi.org/10.14993/00000692
https://doi.org/10.14993/00000692836f6ba7-7682-4c44-b323-0b6e6974f53e
名前 / ファイル | ライセンス | アクション |
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P09-20.pdf (1.2 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2013-03-13 | |||||
タイトル | ||||||
タイトル | バスケットボール競技における3ポイントシュート成功率と重心変位との関係 : 大学女子プレーヤーを対象として | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Relationship between 3-point shot success rate in basketball and displacement of center of gravity : focus attention on the college female athlete | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | 球技 | |||||
キーワード | ||||||
主題 | シュート技術 | |||||
キーワード | ||||||
主題 | 正確性 | |||||
キーワード | ||||||
主題 | 身体重心 | |||||
キーワード | ||||||
主題 | ball game | |||||
キーワード | ||||||
主題 | shot technique | |||||
キーワード | ||||||
主題 | accuracy of movement | |||||
キーワード | ||||||
主題 | center of gravity | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.14993/00000692 | |||||
ID登録タイプ | JaLC | |||||
著者 |
坂井, 和明
× 坂井, 和明× 白井, 敦子 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This study aimed to clarify the relationship between displacement of center of gravity(CG) and 3-point shot success rate in basketball. The movement of CG during 3-point shots in experienced players with high 3-point shot success rates was compared with that in inexperienced players with low success rates. The subjects were selected from 52 members of a university women’s basketball team. The experienced group comprised 6 players subjectively evaluated to have high 3-point shot success rates by 2 coaches accredited by the Japan Sports Association as advanced coaches. The inexperienced group comprised 6 players subjectively evaluated as having poor 3-point shot success rates by the same coaches. CG movement during a 3-point shot was measured using a two-dimensional direct linear transformation method. The 3-point shot success rate for each group was calculated from 100 attempts and the success rate was significantly higher in the experienced group(72.8±4.7% vs. 35.8±6.6%, p<0.05). To compare differences in shooting motion between the experienced and inexperienced groups, the following phases of the 3-point shot were established:(1) stance → catch,(2) catch → set,(3) stance → set,(4) set → release,(5) release → maximum, and(6) set → maximum. The main results of the present study were as follows: 1. In the experienced group, vertical displacements of CG were significantly smaller in the stance → catch, set → release, release → maximum, and set → maximum phases, while horizontal displacements of CG were also significantly smaller in the stance → catch, catch → set, stance → set, and set → maximum phases(p<0.05). 2. In the experienced group, vertical acceleration of CG was significantly smaller in the stance → set, set → release, and set → maximum phases, while horizontal acceleration was also significantly smaller in the stance → set phase(p<0.05). 3. In the experienced group, vertical displacements of the tragion were significantly smaller in the stance → catch and set → maximum phases, while horizontal displacements of the tragion were significantly smaller in the catch → set and stance → set phases (p<0.05). 4. Significant negative correlations were found between 3-point shot success rate and vertical displacement of CG in the set → release and set → maximum phases, horizontal displacement of CG in the stance → set phase, vertical displacement of the tragion in the stance → catch phase, and horizontal displacement of the tragion in the catch → set and stance → set phases(p<0.05). These results indicate that it is important to reduce the displacement of CG and the tragion when coaching 3-point shots in basketball. | |||||
書誌情報 |
健康運動科学 巻 2, 号 1, p. 9-20, 発行日 2011-10-25 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2185-338X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12576562 |