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Effects of head during collisions in American football using new technique with strain gauge and accelerometer

Research Project

Project/Area Number 17K01752
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Sports science
Research InstitutionUniversity of Tsukuba

Principal Investigator

FUKUDA TAKASHI  筑波大学, 体育系, 准教授 (30375472)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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 / ひずみセンサ / 頭部衝突 / 加速度センサ / デジタルフィルタ / 頭部作用 / 直線加速度 / 角加速度
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.

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。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2019 2018 2017

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Magnitude and frequency of head impact among university American football players2019

    • Author(s)
      Takashi Fukuda, Sekiya Koike, Shumpei Miyakawa, Hiroto Fujiya,Yuki Yamamoto
    • Journal Title

      The Journal of Physical Fitness and Sports Medicine

      Volume: 8 Issue: 1 Pages: 1-13

    • DOI

      10.7600/jpfsm.8.1

    • NAID

      130007580412

    • ISSN
      2186-8123, 2186-8131
    • Year and Date
      2019-01-25
    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 大学アメリカンフットボール選手における頭部衝突の分析2019

    • Author(s)
      福田崇
    • Journal Title

      筑波大学博士論文

      Volume: 0 Pages: 1-104

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ひずみゲージによる衝突時の異なる接触位置における頭部作用の解析2018

    • Author(s)
      福田崇,小池関也,宮川俊平,藤谷博人
    • Journal Title

      スポーツ工学・ヒューマンダイナミクス2018講演論文集

      Volume: 18 Pages: 1-6

    • NAID

      130007654519

    • Related Report
      2018 Research-status Report
  • [Journal Article] Impact on the head during collisions between university American football players - focusing on the number of head impacts and linear head acceleration -2017

    • Author(s)
      Takashi Fukuda, Sekiya Koike, Syumpei Miyakawa, Hiroto Fujiya, Yuki Yamamoto
    • Journal Title

      The Journal of Physical Fitness and Sports Medicine

      Volume: 6 Issue: 4 Pages: 241-249

    • DOI

      10.7600/jpfsm.6.241

    • NAID

      130005757855

    • ISSN
      2186-8123, 2186-8131
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] The possibility to reduce head kinematics during collisions by strengthening cervical muscle in American football2019

    • Author(s)
      Takashi Fukuda
    • Organizer
      10th Asia Conference on Kinesiology, 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ひずみゲージによる衝突時の異なる接触位置における頭部作用の解析2018

    • Author(s)
      福田崇,小池関也,宮川俊平,藤谷博人
    • Organizer
      日本機械学会 シンポジウム:スポーツ工学・ヒューマンダイナミクス2018
    • Related Report
      2018 Research-status Report
  • [Presentation] 高校アメリカンフットボール選手の衝突時における頭部作用力の測定2018

    • Author(s)
      福田崇,小池関也,宮川俊平,藤谷博人,山元勇樹
    • Organizer
      第29回日本臨床スポーツ医学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 大学アメリカンフットボール選手の衝突部位による頭部作用2017

    • Author(s)
      福田 崇,小池関也,松元 剛,宮川俊平,山元勇樹
    • Organizer
      第72回日本体力医学会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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