2015 Fiscal Year Final Research Report
Investigation of functional differences among hamstring muscles: focus on joint angle, muscle contraction mode, and muscle contraction velocity
| Project/Area Number |
25350827
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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 | Jobu University (2014-2015)
Waseda University (2013) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | ハムストリングス / 股関節伸展 / 膝関節屈曲 / 関節角度 / 筋収縮様式 / 筋収縮速度 / 筋電図 / 筋力 |
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| Outline of Final Research Achievements |
The purpose of this study was to investigate functional differences among hamstring muscles (the biceps femoris muscle, semimembranosus muscle, and semitendinosus muscle) in hip extension and knee flexion exercises. Hip extension exercise with the knee extended showed significantly greater muscle force than that with the knee flexed (in both concentric and eccentric muscle contraction modes). Knee flexion exercise with the hip flexed had significantly greater muscle force than that with the hip extended (in both concentric and eccentric muscle contraction modes). However, there were no functional differences among hamstring muscles in both hip extension and knee flexion exercises from the viewpoints of joint angle, muscle contraction velocity, and muscle contraction mode.
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| Free Research Field |
運動生理学
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