2019 Fiscal Year Final Research Report
Relationships between lower-extremity fitness, pitching motion, and pitching performance in baseball pitchers
| Project/Area Number |
16K01731
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Sports science
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| Research Institution | Jobu University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Keywords | 野球 / 投手 / 球速 / ボールコントロール / 下肢筋力 / 下肢柔軟性 / バランス能力 / ストライド幅 |
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| Outline of Final Research Achievements |
The purpose of this study was to evaluate the relationships between lower-extremity fitness, pitching motion, and pitching performance in college baseball pitchers. Abduction and adduction strength in both hips were significantly correlated with maximum ball velocity. Stride length during pitch was not significantly correlated with hip abduction range of motion or maximum ball velocity. Moreover, over the course of a series of repetitive throwing motions corresponding to a single complete game, hip abduction and adduction strength were significantly affected by fatigue.
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| Free Research Field |
運動生理学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は，投手の股関節外転・内転筋力（股関節を開いたり，閉じたりする力）が球速と密接な関係をもつとともに，投球数の増加に伴う疲労の影響を受けやすことを明らかにした．それゆえ，投手のトレーニングにおいて，股関節の外転・内転筋力を強化するプログラムが，投球パフォーマンスの維持向上に有効であると推察できる．加えて，投手の障害予防やコンディショニングにおいても，投手の股関節機能は着目すべき体力要素のひとつであると考えられる．
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