• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Factors affecting loading responses during walking in unilateral transfemoral amputees

Research Project

Project/Area Number 19K11338
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Hobara Hiroaki  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (40510673)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords義足 / 歩行 / バイオメカニクス / 非対称性 / リハビリテーション / 大腿切断 / 地面反力 / 大腿切断者 / 片側大腿切断者 / 非対称歩行
Outline of Research at the Start

片側大腿切断者における左右非対称な歩行は,一側肢への過負荷蓄積を通じて筋骨格系障害の潜在的リスクとなる.なかでも,接地初期における鉛直地面反力の時間変化率(Loading Rate)は,片側大腿切断者特有の非切断側・残存部位における変性疾患の誘因となることが示唆されており,義肢全体の歩行機能評価指標としての応用可能性も有する.しかしながら,片側大腿切断者における Loading Rate についての報告は少なく,その関連因子についても未解明なままである.そこで本研究の目的は,様々な歩行速度における Loading Rate を片側大腿切断者から大規模に計測し,その関連因子の解明に挑戦する.

Outline of Final Research Achievements

In the present study, unilateral transfemoral amputees (n=25) showed obvious bilaterally asymmetric gait features, especially, the magnitude of ground reaction forces, the external mechanical work, the center of pressure trajectories, and the vertical loading rate at the initial stance. These results are indicative of relevance to the elevated risk of musculoskeletal impairments, such as chronic back pain, and knee osteoarthritis, which is often observed in the unilateral transfemoral amputees. On the other hand, we also found that the elevated impact loading on the intact limb may be mitigated through increased push-off at the late stance on the prosthetic limb. Further, microprocessor control knee joint may be able to a key technology to achieving these preferrable adaptations in unilateral transfemoral amputees.

Academic Significance and Societal Importance of the Research Achievements

本研究を通じて,片側大腿切断者25名からなる大規模な歩行データを取得することができた.同データは2.0 km/hから5.5 km/の8段階速度で計測を行っており,個人属性も詳細に記録しているが,こうしたデータセットは非常に珍しく,今後,日本国内における下肢切断者の歩行リハビリテーションの標準値になると考えられる.また,一側肢への過負荷蓄積が二次障害を誘発する可能性を明らかにしたという点から,各個人にあった義足パーツの選定,衝撃緩衝材を利用した義足部品の開発,非切断側への医療ケアといった,臨床的にも重要な知見を創出できたと考えている.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (18 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (8 results) Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 6 results)

  • [Int'l Joint Research] Northwestern University(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Hong Kong Polytechnic University(中国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Northwestern University(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] The Hong Kong Polytechnic University(中国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] National Institute of Education (NIE)(シンガポール)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] INAIL/University of Padova(イタリア)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Northwestern University/Regis University(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] German Sport University Cologne(ドイツ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Effects of walking speed on magnitude and symmetry of ground reaction forces in individuals with transfemoral prosthesis2022

    • Author(s)
      Kobayashi Toshiki、Hu Mingyu、Amma Ryo、Hisano Genki、Murata Hiroto、Ichimura Daisuke、Hobara Hiroaki
    • Journal Title

      Journal of Biomechanics

      Volume: 130 Pages: 110845-110845

    • DOI

      10.1016/j.jbiomech.2021.110845

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of walking speed and prosthetic knee control type on external mechanical work in transfemoral prosthesis users2022

    • Author(s)
      Pinhey Shay R.、Murata Hiroto、Hisano Genki、Ichimura Daisuke、Hobara Hiroaki、Major Matthew J.
    • Journal Title

      Journal of Biomechanics

      Volume: 134 Pages: 110984-110984

    • DOI

      10.1016/j.jbiomech.2022.110984

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] External Mechanical Work in Runners With Unilateral Transfemoral Amputation2021

    • Author(s)
      Murata Hiroto、Hisano Genki、Ichimura Daisuke、Takemura Hiroshi、Hobara Hiroaki
    • Journal Title

      Frontiers in Bioengineering and Biotechnology

      Volume: 9

    • DOI

      10.3389/fbioe.2021.793651

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inter-limb weight transfer strategy during walking after unilateral transfemoral amputation2021

    • Author(s)
      Amma R, Hisano G, Murata H, Major MJ, Takemura H, Hobara H
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 4793-4793

    • DOI

      10.1038/s41598-021-84357-9

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Asymmetric center of pressure during walking after unilateral transfemoral amputation2022

    • Author(s)
      Daisuke Ichimura、Hisano Genki、Murata Hiroto、Hobara Hiroaki
    • Organizer
      The 9th World Congress of Biomechanics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of walking speed on external mechanical work on the body center of mass in transfemoral prosthesis users2021

    • Author(s)
      Shay Pinhey, Amma Ryo, Murata Hiroto, Hisano Genki, Ichimura Daisuke, Hobara Hiroaki, Major Justin Matthew
    • Organizer
      The 45th Annual Meeting of the American Society of Biomechanics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Classification of spatiotemporal gait patterns in unilateral transfemoral amputees2021

    • Author(s)
      Ichimura Daisuke, Amma Ryo, Murata Hiroto, Hisano Genki, Hobara Hiroaki
    • Organizer
      International Society of Biomechanics XXVIII Congress
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Per-step and cumulative loading rate in unilateral transfemoral amputees at various walking speeds2020

    • Author(s)
      Amma R, Hisano H, Sakata H, Usui F, Takemura H, Hobara H
    • Organizer
      XXIII Congress of the International Society of Electrophysiology and Kinesiology (ISEK2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Ground reaction forces using a transfemoral prosthetic simulator during treadmill walking2019

    • Author(s)
      Amma R, Kato H, Takemura H, Hobara H
    • Organizer
      REHABWEEK 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effects of walking speeds on loading rate in unilateral transfemoral amputees2019

    • Author(s)
      Amma R, Sakata H, Hisano G, Hashizume S, Takemura H, Usui F, Hobara H
    • Organizer
      The 17th World Congress of the International Society for Prosthetics and Orthotics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi