| Project/Area Number |
24650385
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Sports science
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| Research Institution | Osaka University |
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Principal Investigator |
MATSUO Tomoyuki 大阪大学, 医学(系)研究科(研究院), 准教授 (00209503)
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| Co-Investigator(Renkei-kenkyūsha) |
SAKAI Takahiro 大阪保健医療大学, 保健医療学部, 教授 (60353009)
SATO Mutsumi 大阪保健医療大学, 保健医療学部, 講師 (40444533)
HIRAYAMA Daisaku 独立行政法人日本スポーツ振興センター国立スポーツ科学センター, スポーツ科学 研究部, 契約研究員 (60466670)
JINJI Tsutomu 国際武道大学, 体育学部, 助教 (20387616)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 身体システム学 / スポーツ科学 / 身体運動学 / 運動制御 / スポーツバイオメカニクス / 生物・生体工学 / 投球 / 動作解析 / ランダマイズ法 / モーションキャプチャー / 投球動作 / コントロール / 手掌 |
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| Research Abstract |
The purpose of this study was to investigate whether the movement of pitching is controlled so that fluctuation arising at a joint is complemented mutually among joints. Data were collected from 18 semi-professional pitchers who threw a baseball from an indoor mound, by using a motion capture system with 16 high-speed cameras (1,000 Hz). A simulation motion was generated by using the direct kinematics with randomized method in which each joint angle is randomly selected from the 10 best pitches. One hundred set, one set was composed of 10 simulated motions, were generated. The standard deviations of the position, direction, and movement direction for the actual movement was compared with the 100 sets of the simulated motion. The SDs for the actual movement were much smaller than those for the simulated movements. It suggested that the actual pitching movement is controlled by some mechanism utilizing mutual-complementary coordination.
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