2001 Fiscal Year Final Research Report Summary
Development of evaluation system for human muscle characteristics by means of ultrasonography
| Project/Area Number |
11358001
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 展開研究 |
|---|
| Research Field |
体育学
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
FUKUNAGA Tetsuo The Univ. of Tokyo, Graduate School of Arts and Sciences, Professor, 大学院・総合文化研究科, 教授 (40065222)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KAWAKAMI Yasuo The Univ. of Tokyo, Graduate School of Arts and Sciences, Associate Prof., 大学院・総合文化研究科, 助教授 (60234027)
FUKASHIRO Senshi The Univ. of Tokyo, Graduate School of Arts and Sciences, Associate Prof., 大学院・総合文化研究科, 助教授 (50181235)
KANEHISA Hiroaki The Univ. of Tokyo, Graduate School of Arts and Sciences, Associate Prof., 大学院・総合文化研究科, 助教授 (50161188)
|
|---|
| Project Period (FY) |
1999 – 2001
|
| Keywords | Ultrasonography / muscle fiber / tendinous tissues / elasticity |
|---|
| Research Abstract |
The purpose of the present study is to develop the evaluation system for functional and architectural characteristics of human muscle by means of real-tune ultrasonography. The new system using ultrasonography developed in the present study made it possible to measure directly in vivo dynamic behavior of muscle fiber and tendinous tissues during human movements. Results indicated that tendinous tissues were so compliant that muscle fiber shortened even "isometric" joint actions. These elasticity of tendinous tissues induces more efficient contraction of muscle fiber during such human movements as jumping and walking. Thus the mechanical power performed by joint action were caused by mainly elastic recoil of tendinous tissues, while muscle fiber produce mainly mechanical force more efficiently with static contraction.
|
