The role of ball path curvature in basketball shooting accuracy.

IF 2.3 2区 医学 Q2 SPORT SCIENCES
Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-11-02 DOI:10.1080/02640414.2024.2422735
Nathan Slegers, Dave Love
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Abstract

During the shooting motion of a basketball, the path of the ball from the beginning of the lift to release follows an S-shaped trajectory. This study is the first to investigate how two distinctive features of the S-shaped ball path, the maximum curvature, κmax, and terminal curvature, σ, are associated with longitudinal accuracy. The sagittal plane ball path and curvature were found using Bezier curves for 31 professional male basketball athletes. Terminal release curvature had a very strong positive correlation to intra-individual release velocity standard deviation (r = 0.73, p < 0.001) indicating that shooters with straighter terminal ball paths had better longitudinal shooting accuracy. It was also observed that κmax coincided with the transition to the forward shooting motion and that players with higher κmax tend to have a clear two-part shooting style rather than a single fluid motion. A comparison between groups of good and poor shooters identified a mean difference in κmax of 7.9 m-1 (p < 0.001, 95% CI: 11.8-4.0 m-1) suggesting that good shooters typically have a higher κmax than poor shooters.

球路曲率在篮球投篮精度中的作用
在篮球的投篮运动中,球从开始升起到释放的轨迹呈 S 形。本研究首次研究了 S 形球路径的两个显著特征(最大曲率 κmax 和末端曲率 σ)与纵向精度的关系。使用贝塞尔曲线对 31 名专业男子篮球运动员的矢状面球路和曲率进行了研究。终端释放曲率与个体内部释放速度标准偏差有很强的正相关性(r = 0.73,p 最大值与向前投篮动作的过渡相吻合,κ最大值较高的运动员倾向于具有明显的两部分投篮风格,而不是单一的流畅动作。通过比较优秀射手组和差劲射手组,发现κmax 的平均差异为 7.9 m-1 (p-1),这表明优秀射手的κmax 通常高于差劲射手。
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来源期刊
Journal of Sports Sciences
Journal of Sports Sciences 社会科学-运动科学
CiteScore
6.30
自引率
2.90%
发文量
147
审稿时长
12 months
期刊介绍: The Journal of Sports Sciences has an international reputation for publishing articles of a high standard and is both Medline and Clarivate Analytics-listed. It publishes research on various aspects of the sports and exercise sciences, including anatomy, biochemistry, biomechanics, performance analysis, physiology, psychology, sports medicine and health, as well as coaching and talent identification, kinanthropometry and other interdisciplinary perspectives. The emphasis of the Journal is on the human sciences, broadly defined and applied to sport and exercise. Besides experimental work in human responses to exercise, the subjects covered will include human responses to technologies such as the design of sports equipment and playing facilities, research in training, selection, performance prediction or modification, and stress reduction or manifestation. Manuscripts considered for publication include those dealing with original investigations of exercise, validation of technological innovations in sport or comprehensive reviews of topics relevant to the scientific study of sport.
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