Investigation of the Effect of Physical Ability on the Fall Mitigation Motion Using the Combination of Experiment and Simulation

DOI Web Site 参考文献36件 オープンアクセス
  • Yasuhiro Akiyama
    Faculty of Textile Science and Technology, Shinshu University, Nagano 386-8567, Japan
  • Shuto Yamada
    Department of Mechanical Systems Engineering, Nagoya University, Aichi 464-8601, Japan
  • Shogo Okamoto
    Department of Computer Science, Tokyo Metropolitan University, Tokyo 191-0065, Japan
  • Yoji Yamada
    National Institute of Technology, Toyota College, Aichi 471-0067, Japan

書誌事項

公開日
2024-04-04
資源種別
journal article
権利情報
  • https://creativecommons.org/licenses/by/4.0/
DOI
  • 10.3390/app14073051
公開者
MDPI AG

説明

<jats:p>The simulation of fall plays a critical role in estimating injuries caused by fall. However, implementing human fall mitigation motions on a simulator proves challenging due to the complexity and variability of fall movement. Our simulator estimates fall motion by extrapolating the motion observed in fall experiments. By incorporating actual fall motion data for the upper limbs, we enhanced the realism of the fall simulation. The application of forward dynamics control to the lower limbs allowed for the adjustment of mitigation motions, taking into account individual physical capabilities. In this study, fall simulations were conducted under the constraints of maximum joint torque and maximum torque change rate, emulating the physical capabilities of both the elderly and young adults. Our results successfully demonstrated the mitigation motion facilitated by the stance leg reduced the descent velocity of the center of mass by 0.75 m/s for elderly individuals and by 1.25 m/s for young adults, compared to a zero torque condition. This indicates that our study introduced a novel method for quantifying the impact of the lower limbs’ physical capabilities on fall velocity. Such a method represents a significant advancement in understanding how mitigation motions can influence fall injury simulations.</jats:p>

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