| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Outline of Final Research Achievements |
In daily life, many occasions require the simultaneous use of multiple muscles. Especially, complex multi-limb movements such as playing the piano or drum require fine coordination, not only of muscle contraction but also of muscle relaxation. It is well known that muscle contraction influences on the motor behavior in another limb (remote effect). The objective of the present research was to clarify the remote effect of muscle relaxation. It is demonstrated that the force magnitude of sustained contraction or corticospinal excitability for one muscle decreased by muscle relaxation for another muscle of ipsilateral, contralateral and intra-limb.
Furthermore, we additionally demonstrated that motor imagery of muscle relaxation also induced reduction of corticospinal excitability for another muscle.
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