Muscle reflection computer model of people with disabilities in wheelchairs traveling in motor vehicles

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  • Takano Junichi
    Tokyo Metropolitan University Graduate School of System Design
  • Aomura Shigeru
    Tokyo Metropolitan University Graduate School of System Design
  • Kikuchi Emiko
    Tokyo Metropolitan University Graduate School of Human Health Sciences
  • Nitta Osamu
    Tokyo Metropolitan University Graduate School of Human Health Sciences
  • Suzuki Kentaro
    Tokyo Metropolitan University Graduate School of Human Health Sciences

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Other Title
  • 急停車と急発進時における車載車いす搭乗者の身体挙動と筋活動のコンピュータシミュレーション
  • キュウテイシャ ト キュウハッシンジ ニ オケル シャサイ クルマイス トウジョウシャ ノ シンタイ キョドウ ト キン カツドウ ノ コンピュータ シミュレーション

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Abstract

The purpose of the study is to express the motion of disabled people at a sudden stop and start by using a muscle reflection model. The model was composed of two rigid links and three masses and was characterized with muscle reflection defined by Hill's equation. A sudden stop and start experiment was performed to obtain human muscle parameters and to evaluate the model. Volunteer subjects including people with disabilities participated in the experiment. The subjects were placed in a wheelchair fixed to a carriage. The cervical angle, the trunk angle and the myoelectric potential were measured. This model simulated the motion and the myoelectric potential of each subject without/with seatbelt. The simulation results were similar to experimental results. The simulation results show that safety equipments are more important for people with disabilities than for people without disability.

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