3D analysis of muscle metabolism during exercise
| Project/Area Number |
24500799
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Sports science
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| Research Institution | Tokyo Medical University |
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Principal Investigator |
KIME Ryotaro 東京医科大学, 医学部, 講師 (90366120)
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| Co-Investigator(Kenkyū-buntansha) |
NIWAYAMA Masatsugu 静岡大学, 電子工学研究所, 准教授 (40334958)
KATSUMURA Toshihito 東京医科大学, 医学部, 教授 (80214352)
MURASE Norio 東京医科大学, 医学部, 講師 (10317894)
OSADA Takuya 東京医科大学, 医学部, 講師 (60297281)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 筋酸素動態 / 近赤外線分光法 / 磁気共鳴分光法 / 不均一性 / エネルギー代謝 / 筋エネルギー代謝 / 膝伸展運動 / 近赤外分光法 |
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| Outline of Final Research Achievements |
This study used two-dimensional 31Phosphorus Chemical Shift Imaging, to detect differences between the deep and superficial parts of the human leg muscles during dynamic knee extension exercise. The experiments were carried out with a 1.5-T superconducting magnet with a 5 inch-diameter circular sur-face coil. The subjects performed dynamic one-legged knee extension exercise in the prone position, with the transmit-receive coil placed under the right quadriceps muscles in the magnet. The subjects pulled down an elastic rubber band attached to the ankle at a frequency of 0.25, 0.5 and 1 Hz for 320 sec each. The Pi/PCr of the superficial parts was not significantly increased with increasing work rate. Compared with the superficial areas, the Pi/PCr of the deep parts was significantly higher (p < 0.05) at 1Hz. The intracellular pH showed no significant difference between the two parts.
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Report
(4 results)
Research Products
(11 results)
