2009 Fiscal Year Final Research Report
Mechanisms of force enhancement during electrically-induced contractions at a constant stimulation frequency by an additional pulse in humans.
| Project/Area Number |
20700476
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Physical education
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| Research Institution | National Institute of Fitness and Sports in Kanoya |
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Principal Investigator |
YOSHITAKE Yasuhide National Institute of Fitness and Sports in Kanoya, 体育学部, 講師 (70318822)
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| Co-Investigator(Renkei-kenkyūsha) |
SHINOHARA Minoru ジョージア工科大学, 応用生理学部, 准教授 (70241213)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 筋・腱複合体 / 超音波Bモード法 / catch-like property / 電気刺激 |
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| Research Abstract |
Muscle force is enhanced when an extra pulse is applied during an electrically evoked muscle contraction with a constant stimulation frequency ("catchlike property"). To elucidate these mechanisms, we measured the behaviors of muscle-tendon complex using ultrasound B-mode. From the results of current study, the enhancement in force induced by an extra pulse is due to an increase in muscle stiffness in humans.
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