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Influence of gender differences in whole spinal alignment patterns on neck injuries caused by vehicle crashes(Fostering Joint International Research)

Research Project

Project/Area Number 16KK0137
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research)

Allocation TypeMulti-year Fund
Research Field Materials/Mechanics of materials
Research InstitutionJapan Automobile Research Institute

Principal Investigator

Sato Fusako  一般財団法人日本自動車研究所, 安全研究部, 研究員 (10728281)

Project Period (FY) 2017 – 2019
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Keywords交通事故 / 脊柱アライメント / 乗車姿勢 / 交通外傷 / 追突 / 後突 / 有限要素解析 / 頚部傷害 / 傷害予防
Outline of Final Research Achievements

The main aim of this study was to investigate the influence of gender differences in whole spinal alignment patterns on intervertebral kinematics and the surrounding soft tissue deformation during rear impacts.
The average gender specific spinal alignment patterns of an automotive seated posture were implemented into an occupant FE model of female average size. Reconstruction FE simulations of rear impact sled tests were carried out with those occupant FE models, respectively. In the reconstructed simulations, the female average spinal alignment pattern demonstrated larger intervertebral displacements from the lower cervical spine to the upper thoracic spine when compared to the male average spinal alignment pattern. Larger elongation of the Anterior longitudinal ligament and the Capsular ligament in the cervical spine occurred at intervertebral levels where larger intervertebral displacement was observed.

Academic Significance and Societal Importance of the Research Achievements

車の衝突安全性能は,主に成人男性平均体型の衝突試験用人体模型を用い,男性の屍体や被験者実験より導出した傷害指標・傷害基準で評価されている.車の衝撃吸収性能やシート等の性能・寸法が,成人男性平均の耐性・体格を主に設計されるため,女性の耐性・体格に対して具体的な対応がなされていないのが現状である.本研究の成果は,これまで主に対策されてきた平均的な成人男性のみならず,あまり考慮されてこなかった交通参加者(女性等)も考慮した対策の必要性を示唆するものである.

Report

(2 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • Research Products

    (7 results)

All 2020 2019 2017

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] Chalmers工科大学(スウェーデン)2017

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Optimization of Female Head-Neck Model with Active Reflexive Cervical Muscles in Low Severity Rear Impact Collisions2020

    • Author(s)
      I Putu A. Putra, Johan Iraeus, Fusako Sato, Mats Y. Svensson, Astrid Linder & Robert Thomson
    • Journal Title

      Annals of Biomedical Engineering

      Volume: - Issue: 1 Pages: 1-14

    • DOI

      10.1007/s10439-020-02512-1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Relationship Between Cervical, Thoracic, and Lumbar Spinal Alignments in Automotive Seated Posture2019

    • Author(s)
      Sato Fusako、Miyazaki Yusuke、Morikawa Shigehiro、Perez Antonio Ferreiro、Schick Sylvia、Yamazaki Kunio、Brolin Karin、Svensson Mats Y.
    • Journal Title

      Journal of Biomechanical Engineering

      Volume: 141 Issue: 12 Pages: 121006-121006

    • DOI

      10.1115/1.4045111

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Towards Occupant Protections for Both Men and Women2019

    • Author(s)
      Fusako Sato, Karin Brolin, Mats Svensson, Astrid Linder
    • Journal Title

      Advances in Intelligent Systems and Computing

      Volume: 975 Pages: 603-615

    • DOI

      10.1007/978-3-030-20216-3_56

    • ISBN
      9783030202156, 9783030202163
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comparison of control strategies for the cervical muscles of an average female head-neck finite element model2019

    • Author(s)
      I Putu A Putra, Johan Iraeus, Robert Thomson, Mats Y Svensson, Astrid Linder, Fusako Sato
    • Journal Title

      Traffic Injury Prevention

      Volume: 20 Issue: sup2 Pages: S116-S122

    • DOI

      10.1080/15389588.2019.1670818

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Towards Occupant Protections for Both Men and Women2019

    • Author(s)
      Fusako Sato, Karin Brolin, Mats Svensson, Astrid Linder
    • Organizer
      International Conference on Applied Human Factors and Ergonomics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of control strategies for the cervical muscles of an average female head-neck finite element model2019

    • Author(s)
      I Putu A Putra, Johan Iraeus, Robert Thomson, Mats Y Svensson, Astrid Linder, Fusako Sato
    • Organizer
      Annual Scientific Conference of the Association for the Advancement of Automotive Medicine (AAAM)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2017-03-15   Modified: 2021-02-19  

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