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ID 118204
Title Alternative
事故の再現と解析による繰り返し脳震盪の診断支援システムの検討 : 柔道とアメリカンフットボールにおける事故を例として
Diagnosis of the repetitive brain concussion
Author
Aomura, Shigeru Tokushima University
Nakadate, Hiromichi Shinshu University
Zhang, Yuelin Sophia University
Ueno, Takahiro SHIFT
Keywords
repetitive concussion
traumatic brain injury
multibody dynamics
finite element method
Judo and American football
Content Type
Thesis or Dissertation
Description
In this paper the effectiveness of the support system which predicts the risk of the repetitive brain concussion is studied biomechanically. In the risk prediction system, the accident that caused the concussion is reconstructed by analyzing the game video via multibody dynamics and the resulting brain injury is calculated in detail by the finite element method. In order to calculate the aggravation of the brain injury by the repeated brain concussion, the following two methods are examined. In the first method, the material properties of the part of the brain damaged by the1st impact are changed in the simulation of the 2nd impact. In the second method, each brain damage caused by the repeated impacts is accumulated. The system was applied to the real-life accidents that occurred during Judo and American football games. As a result of the simulations, the aggravation of the brain damage due to repetitive concussion was determined numerically in terms of the maximum strain of the brain and the brain damage rate of the whole brain. The biomechanical process of the collision accidents and the resulting brain damage were reconstructed based on the video and the results are effective to prevent the future repeated concussion accidents.
Journal Title
The Journal of Medical Investigation
ISSN
13496867
13431420
NCID
AA11166929
Publisher
Tokushima University Faculty of Medicine
Volume
70
Issue
1-2
Start Page
213
End Page
220
Sort Key
213
Published Date
2023-02
Remark
内容要旨・審査要旨・論文本文の公開
本論文は,著者Shigeru Aomuraの学位論文として提出され,学位審査・授与の対象となっている。
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
ETD
MEXT report number
甲第3700号
Diploma Number
甲医第1570号
Granted Date
2023-03-23
Degree Name
Doctor of Medical Science
Grantor
Tokushima University
departments
Medical Sciences