| Project/Area Number |
24650324
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Saitama Prefectural University |
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Principal Investigator |
HARA MOTOHIKO 埼玉県立大学, 保健医療福祉学部, 教授 (30386007)
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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 |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 脊髄前角細胞興奮性 / F波 / 経頭蓋直流電気刺激 / 神経生理学 / 脊髄前角細胞 / 運動想起 / 脳・神経 / リハビリテーション / 生理学 |
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| Outline of Final Research Achievements |
We explored to study effect of motor imagery and voluntary contraction on F waves recorded from the first dorsal interosseous muscle using Trance cranial direct current stimulation (tDCS). 50 F waves each were recorded at rest, during motor imagery, during negative motor imagery and during voluntary contraction monitored by a force transducer to maintain the level at 10% of maximal effort under sham, cathodal tDCS (C) and anodal tDCS (A). The trial average of F-waves increased significantly during voluntary contraction from at rest in Sham, C and A. The trial average of F-waves decreased in every condition compared between S and C or A. Voluntary contraction of FDI muscle enhance the excitability of ulnar nerve anterior horn cells as evidenced by an increase of trial average of F-wave amplitudes. The effect of tDCS for MI and voluntary muscle contraction should be discussed by farther study.
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