2011 Fiscal Year Final Research Report
Association between directional variability of the isometric force vector and electromyography
| Project/Area Number |
22700592
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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 |
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| Project Period (FY) |
2010 – 2011
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| Keywords | 力変動 / 筋電図 / 運動単位の発火頻度 |
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| Research Abstract |
We have examined the followings ; 1) the low-frequency component of rectified electromyography(EMG) may provide temporal information on the instantaneous rate of force fluctuations(dF/dt) during steady contractions 2) low-frequency component of rectified EMG(<5 Hz) reflects the temporal characteristics and magnitude of the variability of motor unit discharge rate 3) the rectified EMG is associated with the unintended instantaneous rate of force fluctuations(dF/dt) and it's association is enhanced by development of muscle fatigue.
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