| Project/Area Number |
26560342
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Sports science
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | トレイルランニング / 凹凸地 / 軟弱地 / 三次元ビデオ分析 / DLT法 / モーションキャプチャ / 路面粘弾性 / 下肢弾性 / 3次元動作分析 / 登り坂 / 高速度ビデオ / 上り坂 |
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| Outline of Final Research Achievements |
The aim of this study was to clarify the kinematic characteristics of the rough terrain running. The top athletes in the official trail-running races were videotaped, and the 3D coordinate data were reconstructed by a DLT method. In addition, the running motions at the laboratory situation were analyzed. At the rough terrain, the ratio of support time was extended compared with the paved road. The distance of toe-off, the horizontal distance between the ankle and the body CG at the toe off, was longer over the rough terrain than the paved road. Moreover, the athletes controlled the knee angle according to the stiffness and/or elasticity of the running surface. These findings can be considered appropriate from the viewpoint of the utilization of mechanical energy. During the uneven terrain, especially the partly higher surface, the athlete controlled the knee angle in order to keep the body balance.
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