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最終更新日：2024/11/18
森下 義隆
モリシタ ヨシタカ
(Yoshitaka Morishita)
論文
- タイトル
- タイトル（英）
- Factors of individual differences between the speeds of the hand and ball during baseball pitching: Assessment of middle finger function based on the hierarchical linear model.
- 参照URL
- https://researchmap.jp/read0144454/published_papers/48478019
- 著者
- 著者（英）
- Tomoyuki Matsuo,Tsutomu Jinji,Daisaku Hirayama,Yoshitaka Morishita,Yoichi Katsumata,Shoji Konda,Issei Ogasawara
- 担当区分
- 概要
- 概要（英）
- This study aimed to reveal individual differences between the speeds of the hand and ball and clarify the factors affecting those differences. Motion data from 20 highly skilled baseball pitchers, captured using a 16-camera motion analysis system with a sampling frequency of 1,000 hz, were used for correlation and hierarchical linear model analyses. For the hierarchical linear models, the speed of the metacarpophalangeal joint was the independent variable in the 1st level. The independent variables chosen in the 2nd level were the variables regarding the finger length, mean peak angular velocities, and mean peak accelerations of the middle finger joint. Intra-subject correlation analysis showed high positive correlation coefficients between the metacarpophalangeal joint and ball speeds, ranging from 0.803 to 0.992. The difference between the hand and ball speeds ranged from 8.4 m∙s-1 to 12.0 m∙s-1. The hierarchical linear model analyses indicated that the individual differences between the speeds of the hand and ball were partly accounted for by the mean peak accelerations of the proximal and distal interphalangeal joints, suggesting that the force exerted by proximal interphalangeal joint flexion plays an important role in ball speed increment.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- Journal of sports sciences
- 巻
- 号
- 開始ページ
- 1
- 終了ページ
- 13
- 出版年月
- 2024年11月14日
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- DOI URL
- https://doi.org/10.1080/02640414.2024.2426895
- 共同研究・競争的資金等の研究課題