| Project/Area Number |
25350748
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Sports science
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NISHIHIRA Yoshiaki 筑波大学, 体育系, 教授 (20156095)
HATTA Arihiro 東海大学, 体育学部, 准教授 (20312837)
ARITA Yuji 筑波大学, 体育系, 准教授 (70344877)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 剣道 / 筋緊張 / 筋電図反応時間 / P300 / N140電位 / NOGO電位 / 脳・運動神経系 / collision法 / P300電位 / 運動神経伝導速度 / 長期剣道競技者 / 筋電図 / 神経科学 / 剣道選手 / 事象関連電位 / Go条件 / No条件 |
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| Outline of Final Research Achievements |
This study aimed to detailed clarify changes in the pathways to the information-processing system of the brain of kendo players, as well as their motor nervous and muscular systems, by neuroscientifically examining players with long-term experience of continuously playing kendo using the P300, N140, and NOGO components of brain potentials, collision technique to measure the motor nerve conduction velocity, and electromyography. On comparison with individuals of the general public, kendo players were shown to need markedly less time to activate motor nerves in motor-related brain areas. Their maximum nerve conduction velocity peaked at 46 and 33 m/sec on the dominant and non-dominant sides, respectively. The results suggest the possibility of the maximum nerve conduction velocity changing due to the influence of training.
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