| Project/Area Number |
26702026
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Sports science
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| Research Institution | Osaka University of Health and Sport Sciences |
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Principal Investigator |
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| Research Collaborator |
KOMI V Paavo University of Jyvaskyla, Ph. D. Prof
NICOL Caroline Aix-Marseille University, Ph. D. Prof
SANO Kanae 大阪体育大学, 大学院, 助手 (30762273)
MAKINO Akitoshi 大阪体育大学, 研究員
KUNIMASA Yoko 大阪体育大学, 大学院, 研究員
ODA Toshiaki 兵庫教育大学, 准教授 (10435638)
TAKEUCHI Hideki 東京大学, 大学院工学系研究科, 特任研究員
SASAKI Akira 東京大学, 大学院工学系研究科, 特任研究員
MORIKITA Ikuhiro 大阪体育大学, 教授
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
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| Keywords | アキレス腱 / 加齢 / 長距離走 / アキレス腱スティフネス / 競泳 / オプティックファイバー / 超音波 / 骨格筋 / ランニング / ジャンプ / フィンランド / フランス / 生態学 / 生理学 / バイオメカニクス |
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| Outline of Final Research Achievements |
The purpose of the present study was to understand the modulation of muscle-tendon complex under variable conditions by direct measurement of Achilles tendon force and its length changes as well as the finite element simulation. The results clearly showed that: (1) tendon stiffness and load adjustments cannot regulate the pre-programed muscle activation but affect the post-impact activation and its timing; (2) the specific musculoskeletal characteristics of lower-leg for elite-level Kenyan runners, who can utilize tendon elasticity, can be common feature among Kenyans rather than the results of the specific training adaptation of elite-level Kenyan runners; (3) muscle and tendon adapted to specific asymmetric movements and the repaired ruptured Achilles tendon cannot fully modulate functionally during the pre-programed preparation phase of dynamic movements and this poor modulation to asymmetric muscle-tendon complex may be one of the risk factors for tendon rupture.
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