2005 Fiscal Year Final Research Report Summary
A study on the best motion of ski jumping in take off phase : An analysis of feeling of pressure from the ground
| Project/Area Number |
16500408
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Sports science
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| Research Institution | HIROSHIMA UNIVERSITY |
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Principal Investigator |
WATANABE Kazuhiko Hiroshima University, Graduate School of Education, Professor, 大学院・教育学研究科, 教授 (20057699)
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| Project Period (FY) |
2004 – 2005
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| Keywords | 3D motion analysis / ski jumping / center of pressure / COM / top athlete / postural set / feel pressure |
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| Research Abstract |
The Japanese top ski jumpers were requested to analyze the simulated jumping motion in laboratory, using 3D motion analysis system. The COP of take off phase was also analyzed by "foot scan" system which has detected distribution of foot pressure in static and also dynamic conditions. The main point of the experiment was to understand the position of COP during the set position of take off and the characteristic of the trace of COP during take off motion and" feeling" the pressure point of his sole. The following results were obtained :
1)By using 3D motion analysis and foot scan system, the ski jumper and his coach and also researchers could have a chance to discuss the result during and just after the experiment. Which position of COP on sole of each jumpers were checked and had discussed the best position of the jumper.
2)The result of the COP position and travel of the COP on his sole indicated interesting relationship between his jumping style at take off phase. By using the experimental result of COP from foot scan, the athlete well understood his characteristic of take off style and solved his questions. The COP presented the merit and also the demerit of his jumping scientifically and performed his best jumping in the Torino Olympic Game in 2006.
3)We have a future experimental plan of application of these foot scan system in an actual ski jumping condition and also to the gait analysis in elderly people for a better training and instruction system.
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