| Project/Area Number |
22650150
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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 | Waseda University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥3,010,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,100,000 (Direct Cost: ¥2,100,000)
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| Keywords | バイオメカニクス / 野球 / 投球 / 手指 / ボール回転 / 飛翔軌道 / 回転 / 手 / 指 |
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| Research Abstract |
Although the spin of balls pitched by baseball pitchers influence the their pitching performance, how the spin is produced with hand motion is unclear. In the present study I developed the system to measure ball spin and hand motion simultaneously, and analyzed the physical properties of such ball motion as perceived as "rising". Finger motions just before the ball release strongly influenced the ball spin rate. In those pitchers who threw "rising" ball, pitched balls had higher spin rate and spin axis closer to the horizontal plane.
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