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Development of high slip resistant shoes on the basis of sysytematic investigation of slip-induced fal mechanism during walking

Research Project

Project/Area Number 16K06038
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Design engineering/Machine functional elements/Tribology
Research InstitutionTohoku University

Principal Investigator

Yamaguchi Takeshi  東北大学, 工学研究科, 准教授 (50332515)

Co-Investigator(Kenkyū-buntansha) 堀切川 一男  東北大学, 工学研究科, 教授 (60173605)
柴田 圭  東北大学, 工学研究科, 助教 (60612398)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsすべり / 歩行 / 転倒 / 耐滑シューズ / 摩擦係数
Outline of Final Research Achievements

In this study, the measurement of the traction coefficient between shoe sole and floor during walking indicated that the static and kinetic friction coefficients greater than 0.4 are needed at the shoe-floor interface in order to prevent slip-induced falls. It was also indicated that the gait with a small body lean angle resulted in low traction coefficient, which leads to less slip risk. The shape of shoe tread block which provides the static and kinetic friction coefficients greater than 0.4 over oil-lubricated floor surfaces was found experimentally. In addition, a shoe mounted with miniature tri-axial force sensors was developed and the distribution of required friction coefficient and application direction of friction force in the shoe-floor contact area during walking was investigated. These results will aid in the development of slip-resistant shoe sole over floor surface contaminated with oils.

Academic Significance and Societal Importance of the Research Achievements

屋内外におけるすべりによる転倒事故は,高齢者の寝たきりや労働死傷災害の主要な原因の一つである.本研究の成果は,従来経験的に理解されてきたすべりにくい歩行動作に理論的根拠を与えるものであるとともに,同じく経験的に開発が行われてきた耐滑シューズの開発に定量的な耐滑性評価指針を与えるものであり,すべりによる転倒防止に大きな貢献が期待できるものである.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (17 results)

All 2019 2018 2017 2016

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] Effects of age-related changes in step length and step width on the required coefficient of friction during straight walking2019

    • Author(s)
      Yamaguchi Takeshi、Masani Kei
    • Journal Title

      Gait & Posture

      Volume: 69 Pages: 195-201

    • DOI

      10.1016/j.gaitpost.2019.02.005

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of groove width and depth and urethane coating on slip resistance of vinyl flooring sheet in glycerol solution2019

    • Author(s)
      Shibata Kei、Warita Iori、Yamaguchi Takeshi、Hinoshita Mamoru、Sakauchi Koichi、Matsukawa Seiko、Hokkirigawa Kazuo
    • Journal Title

      Tribology International

      Volume: 135 Pages: 89-95

    • DOI

      10.1016/j.triboint.2019.02.033

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Decrease in required coefficient of friction due to smaller lean angle during turning in older adults2018

    • Author(s)
      Yamaguchi Takeshi、Okamoto Ryosuke、Hokkirigawa Kazuo、Masani Kei
    • Journal Title

      Journal of Biomechanics

      Volume: 74 Pages: 163-170

    • DOI

      10.1016/j.jbiomech.2018.04.038

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of rubber block height and orientation on the coefficients of friction against smooth steel surface lubricated with glycerol solution2017

    • Author(s)
      Yamaguchi Takeshi、Katsurashima Yu、Hokkirigawa Kazuo
    • Journal Title

      Tribology International

      Volume: 110 Pages: 96-102

    • DOI

      10.1016/j.triboint.2017.02.015

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Required coefficient of friction in the anteroposterior and mediolateral direction during turning at different walking speeds2017

    • Author(s)
      Yamaguchi Takeshi、Suzuki Akito、Hokkirigawa Kazuo
    • Journal Title

      Plos One

      Volume: 12 Issue: 6 Pages: e0179817-e0179817

    • DOI

      10.1371/journal.pone.0179817

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dry sliding friction of ethylene vinyl acetate blocks: Effect of the porosity2017

    • Author(s)
      Yamaguchi Takeshi、Sugawara Takehiko、Takahashi Motoi、Shibata Kei、Moriyasu Kenta、Nishiwaki Tsuyoshi、Hokkirigawa Kazuo
    • Journal Title

      Tribology International

      Volume: 116 Pages: 264-271

    • DOI

      10.1016/j.triboint.2017.07.022

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Distribution of the local required coefficient of friction in the shoe-floor contact area during straight walking2018

    • Author(s)
      Takeshi Yamaguchi, Seiya Takano
    • Organizer
      20th Congress International Ergonomics Association
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Groove Depth and Width and Surface Coating of Floor Sheets on Coefficients of Friction under Oil Lubrication2018

    • Author(s)
      Kei Shibata, Iori Warita, Takeshi Yamaguchi, Mamoru Hinoshita, Koichi Sakauchi, Seiko Matsukwa, Kazuo Hokkirigawa
    • Organizer
      20th Congress International Ergonomics Association
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高荷重対応型靴底センサシステムを用いた歩行中の靴底/床面間の必要摩擦係数分布の解明2018

    • Author(s)
      進藤真人,山口健,佐々木祥弘,堀切川一男
    • Organizer
      LIFE2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 潤滑下における靴底用ゴム材料の耐滑設計に関する研究2018

    • Author(s)
      山田学倫,山口健,柴田圭,堀切川一男
    • Organizer
      日本設計工学会2018年度秋季大会研究発表講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Shoe sole design for high slip resistance on powder-contaminated floor surface2017

    • Author(s)
      Takeshi Yamaguchi
    • Organizer
      Slips, Trips, and Falls International Conference 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of ageing on the misalignment of the desired and measured center of pressure during straight walking2017

    • Author(s)
      Takeshi Yamaguchi
    • Organizer
      2017 ISPGR World Congress
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mediolateral and anteroposterior components of required coefficient of friction during turning gait for young and older adults2017

    • Author(s)
      Takeshi Yamaguchi
    • Organizer
      2017 ISPGR World Congress
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Improvement in slip resistance of rubber sole on oil-lubricated surface by controlling height and orientation of tread block2017

    • Author(s)
      Takeshi Yamaguchi
    • Organizer
      The 6th World Tribology Congress 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 耐滑性に優れる靴底意匠設計に関する研究2016

    • Author(s)
      桂島悠
    • Organizer
      日本トライボロジー会議2016秋新潟
    • Place of Presentation
      朱鷺メッセ 新潟コンベンションセンター,新潟
    • Year and Date
      2016-10-11
    • Related Report
      2016 Research-status Report
  • [Presentation] The required coefficient of friction (RCOF) needed to maintain stability when turning versus walking straight2016

    • Author(s)
      Takeshi Yamaguchi
    • Organizer
      Slips, Trips and Falls 2016: The Way Forward
    • Place of Presentation
      Farmers & Fletchers, London, England
    • Year and Date
      2016-10-04
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] センサシューズによる歩行中の靴底接地面内の必要摩擦係数分布2016

    • Author(s)
      山口健
    • Organizer
      日本設計工学会2016年度秋季研究発表講演会
    • Place of Presentation
      北九州国際会議場,北九州
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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