| Project/Area Number |
23700688
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical education
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 骨格筋 / 筋収縮 / 筋束動態 / 生体計測 / 拡散係数 / MRI / 生体内計測 / 拡散テンソル / Tagging Snapshot法 / 超音波法 / 国際情報交流：フランス |
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| Research Abstract |
The purpose of this study was to clarify the force generating mechanism of human skeletal muscle. For this purpose, the architecture of the entire muscle and tendon structure in vivo was measured during contraction. In this study, two newly developed methods, magnetic resonance diffusion tensor imaging and tagging snapshot imaging methods, were used and were compared with the conventional method of the B-mode ultrasonography. One of the main results was that there were several error factors in magnetic resonance diffusion tensor imaging methods; such as the blood perfusion, type of muscle fibers, and the previous activation of the muscle. These factors should not be ignored in the determination of the diffusion parameters.
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