@article{oai:mukogawa.repo.nii.ac.jp:00000698,
 author = {坂井, 和明 and SAKAI, Kazuaki and 白井, 敦子 and SHIRAI, Atsuko},
 issue = {1},
 journal = {健康運動科学},
 month = {Oct},
 note = {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.},
 pages = {9--20},
 title = {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},
 volume = {2},
 year = {2011},
 yomi = {サカイ, カズアキ and シライ, アツコ}
}