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Development of a method for evaluating joint load in activities of daily living using inertial sensors

Research Project

Project/Area Number 19K24326
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 InstitutionTeikyo University of Science & Technology

Principal Investigator

Koyama Yumiko  帝京科学大学, 医療科学部, 助教 (00845042)

Project Period (FY) 2019-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords慣性センサ / 関節負荷 / 動作分析 / 高齢者 / 変形性関節症 / 日常生活動作
Outline of Research at the Start

本研究の目的は、中高齢者の間でも特に困難を来しやすい階段昇降動作及び起立動作に着目し、慣性センサを用いた身体運動及び関節負荷の新たな評価法を検討することである。
このような動作の評価をより簡便に行えることで、医療現場内外での運動指導に応用が可能となる。本研究では、身体重心及び下肢の各体節の加速度特性から、関節への力学的負荷の推定が可能であるかを検討するとともに、変形性関節症の発症リスクが高いことで知られる、高齢者の身体重心及び下肢体節の加速度特性を若年者と比較することで、加齢によって生じる動作の変化が関節への負荷に与える影響を検討する。

Outline of Final Research Achievements

The purpose of this study was to develop a method for evaluating the mechanical load on joints during walking using inertial sensors in young healthy subjects. The subjects were asked to walk in self-seleceted speed, and the kinematic and kinematic data were measured using a three-dimensional motion analysis sysytem and inertial sensors. As a result, it was shown that external knee joint flexion moment was significantly correlated to the forward tilt angular velocity of the shank and the forward tilt angular velocity of the shank relative to the upper trunk. In addition, when multiple regression analysis was performed, only the anterior tilt angular rate of the shank relative to the upper trunk was extracted as a predictor. In estimating the mechanical load on the sagittal plane of the knee joint, it is useful to focus on trunk movement and measure lower limb movement as relative values of the trunk.

Academic Significance and Societal Importance of the Research Achievements

近年、慣性センサによる動作解析技術は急速に発展しており、センサのみで精度の高い関節トルクの推定が可能となった。しかし、現状では高精度の推定には高度な技術を要するなど、実用性の改善を要するものであり、加速度データそのものより得られる情報から動作の評価を行えることは、実用性の観点から優れている。本研究結果より、慣性センサの角速度データを用いて、膝関節の矢状面での力学的負荷を推定できる可能性が示唆された。さらに体幹部との相対的な下肢の回転速度を計測することでより精度の高い推定が可能となることが示された。本研究は慣性センサの応用性を拡大させ、下肢関節の負荷の少ない身体運動の制御方法の解明に繋がる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results) Presentation (1 results) Book (2 results)

  • [Journal Article] Synergistic dominance induced by hip extension exercise alters biomechanics and muscular activity during sprinting and suggests a potential link to hamstring strain2022

    • Author(s)
      1.Iguchi J, Hojo T, Fujisawa Y, Kuzuhara K, Yanase K, Koyama Y, Hirono T, Tateuchi H, Ichihashi N
    • Journal Title

      The Journal of Strength and Conditioning Research

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Immediate effects of stance and swing phase training on gait in patients with stroke2021

    • Author(s)
      Kaoru Sakuma, Hiroshige Tateuchi, Satoru Nishishita, Yusuke Okita, Ryosuke Kitatani, Yumiko Koyama, Satoko Ibuki, Noriaki Ichihashi
    • Journal Title

      International Journal of Rehabilitation Research

      Volume: 12 Issue: 2 Pages: 152-158

    • DOI

      10.1097/mrr.0000000000000464

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Movement variability response to change in the rate of hopping2019

    • Author(s)
      Abbigail L Fietzer, Yumiko Koyama, Kornelia Kulig
    • Journal Title

      Acta of bioengineering and biomechanics

      Volume: 21(4) Pages: 37-45

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Gait kinematics and physical function that most affect intralimb coordination in patients with stroke2019

    • Author(s)
      Kaoru Sakuma, Hiroshige Tateuchi, Satoru Nishishita, Yusuke Okita, Ryosuke Kitatani, Yumiko Koyama , Satoko Ibuki, Noriaki Ichihashi
    • Journal Title

      Neurorehabilitation

      Volume: 45(4) Pages: 493-499

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Gluteus maximus delayed onset muscle soreness effects on lower limb muscle activity and biomechanics during sprinting2021

    • Author(s)
      Junta Iguchi, Tatsuya Hojo, Yoshihiko Fujisawa, Ko Yanase, Kenji Kuzuhara, Tetsuya Hirono, Yumiko Koyama, Hiroshige Tateuchi, Noriaki Ichihash
    • Organizer
      ECSS Virtual Congress 2021
    • Related Report
      2021 Research-status Report
  • [Book] 理学療法プログラムデザインⅣ 運動器(上肢・体幹)・高齢者編2021

    • Author(s)
      市橋則明(編)
    • Total Pages
      404
    • Publisher
      文光堂
    • ISBN
      9784830645952
    • Related Report
      2021 Research-status Report
  • [Book] 理学療法プログラムデザインⅢ 運動器(下肢)編2020

    • Author(s)
      市橋則明(編)
    • Total Pages
      340
    • Publisher
      文光堂
    • ISBN
      9784830645860
    • Related Report
      2020 Research-status Report

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Published: 2019-09-03   Modified: 2024-01-30  

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