Effects of Foot–Floor Friction on Trip-Induced Falls During Shuffling Gait: A Simulation Study

Takeshi Yamaguchi, Kenichi Nakatani, Tomoki Hirose, Takashi Yoshida, Kei Masani

研究成果: Conference contribution

抄録

Tripping while walking has been identified as the most common cause of falls among the elderly as they tend to utilize a shuffling gait while walking, which increases the risk of falling. Since tripping occurs when toes make unexpected contact with objects on the floor, a number of studies have investigated the impact of foot clearance on the risk of tripping. However, only a few studies have examined the effects of foot–floor friction on the risk of tripping. Thus, in this current study, we investigated the effect of foot–floor friction on the probability of trip-induced falls during normal and shuffling gaits in a computational simulation study. We used a computational model with neural rhythm generators and neuromusculoskeletal systems to simulate gait in a self-organized manner. By changing the parameters of the neural rhythm generator, gait parameters such as step length, cadence, and foot clearance were automatically reduced, which simulated the shuffling gait. To alter the foot–floor friction, we changed the spring coefficient ratio of the floor in horizontal and vertical directions. As per our results, it was determined that slip-induced falls occurred under low foot–floor friction conditions in both normal and shuffling gaits, whereas trip-induced falls occurred under high foot–floor friction conditions only with a shuffling gait. These results suggest that optimal foot–floor friction may prevent trip- and slip-induced falls among the elderly.

本文言語English
ホスト出版物のタイトルProceedings of the 21st Congress of the International Ergonomics Association, IEA 2021
ホスト出版物のサブタイトルMethods and Approaches
編集者Nancy L. Black, W. Patrick Neumann, Ian Noy
出版社Springer Science and Business Media Deutschland GmbH
ページ856-860
ページ数5
ISBN(印刷版)9783030746131
DOI
出版ステータスPublished - 2022
イベント21st Congress of the International Ergonomics Association, IEA 2021 - Virtual, Online
継続期間: 2021 6 132021 6 18

出版物シリーズ

名前Lecture Notes in Networks and Systems
223 LNNS
ISSN(印刷版)2367-3370
ISSN(電子版)2367-3389

Conference

Conference21st Congress of the International Ergonomics Association, IEA 2021
CityVirtual, Online
Period21/6/1321/6/18

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 信号処理
  • コンピュータ ネットワークおよび通信

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