| Project/Area Number |
24500737
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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 | Fukuoka University (2014)
Nagoya University (2012-2013) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
AKIMA Hiroshi 名古屋大学, 総合保健体育科学センター, 教授 (40292841)
池上 康男 愛知淑徳大学, 公私立大学の部局等, 教授 (60092988)
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| Co-Investigator(Renkei-kenkyūsha) |
IKEGAMI Yasuo 愛知淑徳大学, 健康医療科学部, 教授 (60092988)
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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 |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | Soccer kick / Adductor longus / Surface EMG / Motion Capture / Ball reaction force / サッカーキック / 内転筋群 / 国際研究者交流 / オーストラリア / 国際情報交換 / 英国 / インサイドキック / インステップキック / サッカー / ボールインパクト / 軸脚 / 平滑化 / キック動作 / 慢性障害 |
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| Outline of Final Research Achievements |
Groin pain has been recognized as common chronic injury for soccer players. This study was designed to identify the mechanics of hip adductors associated to chronic groin pain during the instep and side-foot soccer kicking. The biggest originality of this study was to precisely detect superficial region of adductor longus muscle using ultrasound techniques. Moreover, we aimed to estimate ball reaction force from ball kinematics.
We observed the change of hip adductor’s activation level against kicking effort level separately for the two types of soccer kicks, and found no distinctive changes for the kicking leg in both kicks while notable, significant changes were observed for the support leg EMG in both kicks (between 50% effort vs. other conditions).
We also succeeded in developing an accurate ball impact model to estimate time-dependent change of the ball rection force by considering oval shape ball deformation and instantaneous change of ball surface density during ball impact.
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