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Assessment of Humeral Retroversion Angle in Baseball Players: A Chronological Study
https://showa.repo.nii.ac.jp/records/578
https://showa.repo.nii.ac.jp/records/57815a72c17-52d3-4ed3-bdfa-e3c8c08260cd
名前 / ファイル | ライセンス | アクション |
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S27_63.pdf (197.3 kB)
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Item type | 学内発行雑誌 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2016-05-13 | |||||
タイトル | ||||||
タイトル | Assessment of Humeral Retroversion Angle in Baseball Players: A Chronological Study | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ | departmental bulletin paper | |||||
著者 |
MAKIUCHI, Daisuke
× MAKIUCHI, Daisuke× TSUTSUI, Hiroaki× MIHARA, Kenichi× SUZUKI, Kazuhide× NISHINAKA, Naoya× ATSUMI, Takashi× INAGAKI, Katsunori |
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書誌情報 |
The Showa University journal of medical sciences 巻 27, 号 2, p. 63-69, 発行日 2015-06 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The objective of this study was to compare the humeral retroversion angles (HRA) between baseball players, including children, and those without a history of playing baseball, clarify the characteristics of the HRA in baseball players, and to determine whether or not chronological changes of the HRA are affected by a throwing motion. We studied 32 young baseball players (Group A), 10 elementary and junior high school students who had never played competitive overhead throwing sports (Group B), 65 adult baseball players who had been playing baseball since childhood in a little league or boy's baseball team (Group C), and 11 adults who had never played competitive overhead throwing sports such as baseball or handball (Group D). Computed tomography of both humeri in these subjects was taken with a 5mm slice thickness. For the measurement of HRA, slices from the center of the humeral head and slices from the humeral epicondyle were examined. In baseball players, the mean HRA on the throwing side was larger than that on the non-throwing side, regardless of age and carrier. The HRAs of the elementary and junior high school baseball players as well as those of adult baseball players were larger on the throwing side. The HRA of the throwing side was significantly greater than that of the non-throwing side in both groups of baseball players. Furthermore, the mean HRA on the throwing side of young baseball players was significantly larger than that of adult baseball players, suggesting that the adaptive bony change of the humerus was caused by throwing stress and might occur in the early formative years of a player's career. | |||||
DOI | ||||||
関連識別子 | 10.15369/sujms.27.63 | |||||
出版者 | ||||||
出版者 | Showa University Society | |||||
ISSN | ||||||
収録物識別子 | 0915-6380 | |||||
著者版フラグ | ||||||
出版タイプ | VoR |