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Detection of abnormal gait pattern in knee joint using inertial measurement unit and machine learning

Research Project

Project/Area Number 20K23309
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0909:Sports sciences, physical education, health sciences, and related fields
Research InstitutionSendai National College of Technology

Principal Investigator

Komatsu Akira  仙台高等専門学校, 総合工学科, 助教 (10881469)

Project Period (FY) 2020-09-11 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsIMU / 歩行解析 / センサ・フュージョン / 時系列解析 / 歩行 / 信号処理 / 変形性膝関節症 / 進行度 / 機械学習
Outline of Research at the Start

変形性膝関節症などの膝関節に疾患を有する患者の歩行解析は重要であり,その病状に関する定量的な評価・診断技術への需要は大きい.定量評価のための動作計測において,慣性センサ(IMU)による計測は屋内外を問わず簡便に使用できることから,医療福祉領域において普及しつつある.本研究では,IMUで計測した歩行データをセンサ・フュージョンと機械学習によって処理し,変形性膝関節症患者にみられるような歩行時の異常動作を検出するシステムを開発することで診断や治療を行う医療従事者の負担軽減を実現する.

Outline of Final Research Achievements

Quantitative gait analysis using optical motion capture has been extensively reported, while qualitative evaluations of anomaly movements through gait observation by medical doctor and physical therapists have been conducted for musculoskeletal disorders such as knee osteoarthritis, which can cause pain and deformity as the disease progresses. However, achieving a simple gait analysis has not been realized. In this study, we constructed a gait analysis system incorporating sensor fusion and time series analysis into a small and inexpensive inertial sensor (Inertial Measurement Unit, IMU), and verified the utility of these analysis systems. As a result, it was suggested that it was possible to achieve a quantitative assessment of kinematic changes specific to patients with knee osteoarthritis and that a system with minimal delay in detecting gait cycles could be constructed.

Academic Significance and Societal Importance of the Research Achievements

これまでに様々な歩行解析に関する研究が種々行われてきたが,その多くはモーションキャプチャを主として用いた研究であり,IMUを用いた研究の多くは健常者を対象としていたため患者歩行の定量評価については数少ない.本研究で構築したシステムによって病態進行を有する運動器疾患特有の運動変化を定量評価できると示唆されるため,今後応用することによって他の疾患においてもIMUを用いた歩行解析による評価が実施できることが期待される.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (2 results)

  • [Journal Article] A Novel Classification of Coronal Plane Knee Joint Instability Using Nine-Axis Inertial Measurement Units in Patients with Medial Knee Osteoarthritis2023

    • Author(s)
      Tsukamoto Hiroaki、Saito Kimio、Saito Hidetomo、Kijima Hiroaki、Akagawa Manabu、Komatsu Akira、Iwami Takehiro、Miyakoshi Naohisa
    • Journal Title

      Sensors

      Volume: 23 Issue: 5 Pages: 2797-2797

    • DOI

      10.3390/s23052797

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Knee Flexion Angle During Gait in Knee Osteoarthritis Patients Using Inertial Measurement Unit and Sensor Fusion2022

    • Author(s)
      小松 瞭、鶴宮 聖士、巖見 武裕、塚本 泰朗、須田 智寛、島田 洋一
    • Journal Title

      The Japanese Journal of the Institute of Industrial Applications Engineers

      Volume: 10 Issue: 2 Pages: 64-72

    • DOI

      10.12792/jjiiae.10.2.64

    • ISSN
      2187-5146, 2189-373X
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effectiveness of gait cycle detection using unsupervised time series analysis2022

    • Author(s)
      Komatsu Akira、Iwami Takehiro
    • Journal Title

      Proceedings of 2022 7th International Conference on Intelligent Informatics and Biomedical Science (ICIIBMS)

      Volume: 1 Pages: 1-2

    • DOI

      10.1109/iciibms55689.2022.9971502

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Association between global sagittal malalignment and increasing hip joint contact force, analyzed by a novel musculoskeletal modeling system2021

    • Author(s)
      Miura Takanori、Miyakoshi Naohisa、Saito Kimio、Kijima Hiroaki、Iida Jumpei、Hatakeyama Kazutoshi、Suzuki Kotaro、Komatsu Akira、Iwami Takehiro、Matsunaga Tosiki、Shimada Yoichi
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 10 Pages: 1-15

    • DOI

      10.1371/journal.pone.0259049

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative Evaluation Related to Disease Progression in Knee Osteoarthritis Patients During Gait2021

    • Author(s)
      Tsurumiya Kiyoshi、Hayasaka Wataru、Komatsu Akira、Tsukamoto Hiroaki、Suda Tomohiro、Iwami Takehiro、Shimada Yoichi
    • Journal Title

      Advanced Biomedical Engineering

      Volume: 10 Issue: 0 Pages: 51-57

    • DOI

      10.14326/abe.10.51

    • NAID

      130008002481

    • ISSN
      2187-5219
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Diagnostic Accuracy of the Mobile Assessment of Varus Thrust Using Nine-axis Inertial Measurement Units2021

    • Author(s)
      Tsukamoto Hiroaki、Saito Kimio、Matsunaga Toshiki、Iwami Takehiro、Saito Hidetomo、Kijima Hiroaki、Akagawa Manabu、Komatsu Akira、Miyakoshi Naohisa、Shimada Yoichi
    • Journal Title

      Progress in Rehabilitation Medicine

      Volume: 6 Issue: 0 Pages: n/a

    • DOI

      10.2490/prm.20210009

    • NAID

      130007981734

    • ISSN
      2432-1354
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 9軸慣性センサを用いたdouble level osteotomyの歩行解析2022

    • Author(s)
      塚本泰朗, 齊藤英知, 斉藤公男, 小松瞭, 巖見武裕, 宮腰尚久
    • Organizer
      第49回 日本臨床バイオメカニクス学会(弘前)
    • Related Report
      2022 Annual Research Report
  • [Presentation] IMUデータに基づいた変形性膝関節症患者歩行の進行度判別手法の開発2022

    • Author(s)
      小松瞭, 巖見武裕, 塚本泰朗, 須田智寛, 島田洋一, 宮腰尚久
    • Organizer
      第49回 日本臨床バイオメカニクス学会(弘前)
    • Related Report
      2022 Annual Research Report

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Published: 2020-09-29   Modified: 2024-01-30  

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