Relationship between Cerebral Activity and Movement Frequency of Maximal Finger Tapping

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概要

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• To examine the cerebral activity of the motor cortex during maximum movement, we measured regional cerebral blood flow (rCBF) in twelve normal volunteers, using near infrared spectroscopy (NIRS). Repetitive tapping of the right index finger was performed at 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, and 4.5 Hz, and during maximum effort (ME). The relative increase rate of rCBF during movement beginning with a resting condition was calculated for each movement condition. The left primary sensorimotor cortex showed significant activation during ME compared to the other frequencies. The rapid increase of rCBF was seen immediately after the initiation of finger tapping at all the tested frequencies but showed no increase following that. However, the rCBF during ME continued to increase until the end of the task. Change of the integrated electromyogram (iEMG) for the frequency and change of rCBF for the frequency at all the tested frequencies showed similar tendencies.

• 日本生理人類学会の論文

著者

• OGAKI Tetsuro

  Institute of Health Science, Kyushu University

• Shibuya K

  Department Of Sports Science Japan Institute Of Sports Science

• Shibuya Kenichi

  Dep. Of Sports Sci. Japan Inst. Of Sports Science

• Ogaki Tetsuro

  Institute Of Health Science Kyushu University

• Ogaki Tetsuro

  Institute Of Health Dcience And Graduate School Of Human Environmental Studies Kyushu University

• OGAKI Tetsuro

  Kyushu Univ.

• Kuboyama Naomi

  Graduate School of Human Environment Studies, Kyushu University

• Nabetani Teru

  Department of Contemporary Communication, Shizuoka Eiwa Gakuin University Junior College

• Shibuya Kenichi

  Department of Sports Science, Japan Institute of Sports Science

• Machida Keishi

  Hitachi Medical Co. Ltd.

• Nabetani Teru

  Department Of Contemporary Communication Shizuoka Eiwa Gakuin University Junior College

• Kuboyama Naomi

  Graduate School Of Human Environment Studies Kyushu University

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