2019 Fiscal Year Final Research Report
Effects of head during collisions in American football using new technique with strain gauge and accelerometer
| Project/Area Number |
17K01752
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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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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | アメリカンフットボール / 加速度計 / 頭部加速度 / 衝突回数 / ひずみゲージ / 脳振盪 / 頭部損傷閾値 |
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| Outline of Final Research Achievements |
Concussion in American football has been a major social problem and thus, it is important to prevent a concussion. From the results of this research, it was clarified that Japanese football players who were inferior in physique and physical ability received the same amount of head kinematics at the time of a collision as the counterparts in the USA. Furthermore, it was suggested that the head kinematics could be attenuated if the neck strength was strong. The head acceleration is affected by the collision site, the direction of the acceleration, etc., and the force buffered by the helmet actually acts on the head. In the future, it is expected that more accurate estimation of the head injury threshold value will be possible by examining the action of head collisions from the data obtained by multiple measuring instruments.
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| Free Research Field |
スポーツ医学
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| Academic Significance and Societal Importance of the Research Achievements |
アメリカンフットボールにおける脳振盪は大きな社会的問題であり、脳振盪を予防することが重要である。本研究成果より、本邦の選手では体格や身体能力で劣る米国大学選手と同等の頭部加速度を衝突時に受けていることが明らかとなった。さらに頸部筋力が強いと頭部加速度を減衰できる可能性が示唆された。頭部加速度は衝突部位や加速度の方向などによって影響され、実際にはヘルメットに緩衝された力が頭部に作用する。今後は複数の測定機器によって得られるデータから頭部衝突作用を検討することで、より精度の高い頭部危険閾値の推定が期待される。
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