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Construction of model-based characteristic parameters for the renovation of center of gravity sway tests

Research Project

Project/Area Number 21H01270
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 20010:Mechanics and mechatronics-related
Research InstitutionUtsunomiya University

Principal Investigator

Yoshida Katsutoshi  宇都宮大学, 工学部, 教授 (20282379)

Co-Investigator(Kenkyū-buntansha) 山仲 芳和  宇都宮大学, 工学部, 助教 (00804238)
嶋脇 聡  宇都宮大学, 工学部, 教授 (10344904)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Keywords重心動揺 / ランダム制御系 / パラメータ同定 / 平衡機能 / システム同定 / 確率密度関数 / 粒子群最適化
Outline of Research at the Start

応募者らの独自技術により,重心動揺検査(平衡機能の異常を検出する検査)の方法論を,世界に先駆けて刷新する.本来,平衡機能の異常は,人体というシステムの異常として捉えるべきだが,従来技術では,人体が出力する重心動揺のピーク・トゥ・ピークや,スペクトル密度など,出力の異常値のみが評価対象となっている.その結果,傷病の種類によっては,健常との有意差が出ない等の問題点が報告されている.これに対して,本研究では,独自技術を用いて,重心動揺データの確率分布を再現するランダム制御系モデルを構築し,モデルパラメータを同定することで,様々な被検者の平衡機能特性を,システムパラメータ表示する新手法を開拓する.

Outline of Final Research Achievements

To obtain a dynamic model of center of pressure (COP) sway in human quiet standing, we proposed a new model that consists of a pendulum-type mechanical structure and a control structure with deadband characteristics and random fluctuations. We then solved a parameter identification problem to fit the probability density function (PDF) of the proposed model to the experimentally obtained PDF. Our identified model well reproduced the experimental results, including the bimodal PDF (two peaks) typical of human postural balance.

Academic Significance and Societal Importance of the Research Achievements

世界に先駆けて,重心動揺検査の世界に,現代的な確率解析を導入し,その枠組みを利用しながら,重心動揺を 制御モデル化し,実測データから モデルパラメータを同定することで,重心動揺データのシステムパラメータ表示を実現した.得られたパラメータ表示は,医療分野における重心動揺検査の高度化のみならず,スポーツ科学分野における身体安定性の客観的な評価などへの貢献が期待される.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (12 results)

All 2024 2023 2022

All Journal Article (9 results) (of which Peer Reviewed: 8 results) Presentation (3 results)

  • [Journal Article] `Achieving multi-solution tracking in gravitational particle search algorithm through single parameter extension2024

    • Author(s)
      oshikazu Yamanaka, Shoki Hirose, and Katsutoshi Yoshida
    • Journal Title

      Trans. of the Institute of Systems, Control and Information Engineers (ISCIE)

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improving state feedback control model with dead band for reproducing human balancing motions2024

    • Author(s)
      Yoshikazu Yamanaka, Yuya Nakamura, Hibiki Nakayama, and Katsutoshi Yoshida
    • Journal Title

      Proceedings of the 55th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (SSS'23)

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nonlinear Stochastic Parameter Estimation of a Random Duffing–van der Pol Oscillator Using Fokker–Planck Type Residual2023

    • Author(s)
      Yoshida Katsutoshi、Yamanaka Yoshikazu
    • Journal Title

      Transactions of the Institute of Systems, Control and Information Engineers

      Volume: 36 Issue: 5 Pages: 130-135

    • DOI

      10.5687/iscie.36.130

    • ISSN
      1342-5668, 2185-811X
    • Year and Date
      2023-05-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous design of two-stage gearboxes: an application of multimodal optimization2023

    • Author(s)
      Wakahara Satoshi、Yoshida Katsutoshi、Yamanaka Yoshikazu
    • Journal Title

      Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications

      Volume: 2023 Issue: 0 Pages: 87-92

    • DOI

      10.5687/sss.2023.87

    • ISSN
      2188-4730, 2188-4749
    • Year and Date
      2023-03-24
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancing the gravitational search algorithm through adaptive parameter control using linear mapping of fitness: A Preliminary Investigation2023

    • Author(s)
      Yoshikazu YAMANAKA, Hiroki TAKAHARA, and Katsutoshi YOSHIDA
    • Journal Title

      Proceedings of International Conference on Design and Concurrent Engineering 2023 & Manufacturing Systems Conference 2023

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multi-solution tracking in shifting sphere function using gravitational particle swarm algorithm2023

    • Author(s)
      Shoki Hirose, Katsutoshi Yoshida and Yoshikazu Yamanaka
    • Journal Title

      Proceedings of the 54th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (SSS'22)

      Volume: - Pages: 81-86

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous design of two-stage gearboxes: an application of multimodal optimization2023

    • Author(s)
      Satoshi Wakahara, Katsutoshi Yoshida and Yoshikazu Yamanaka
    • Journal Title

      Proceedings of the 54th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (SSS'22)

      Volume: - Pages: 87-92

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A tracking performance comparison of different particle swarms using tolerance update2022

    • Author(s)
      Yoshikazu Yamanaka, Shoki Hirose, and Katsutoshi Yoshida
    • Journal Title

      The 2022 International Symposium on Nonlinear Theory and its Applications (NOLTA'22)

      Volume: -

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Parameter estimation of a random Duffing-van der Pol system via Fokker-Planck type residual2022

    • Author(s)
      Katsutoshi Yoshida and Yoshikazu Yamanaka
    • Journal Title

      Proceedings of the 53rd ISCIE International Symposium on Stochastic Systems Theory and Its Applications Kusatsu, Oct. 30-31, 2021

      Volume: - Pages: 24-28

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] ヒト走行挙動を模擬するバウンシング型モデルの構築に向けて2023

    • Author(s)
      大箭 海揮,大坪 拓斗, 山仲 芳和, 吉田 勝俊
    • Organizer
      日本機械学会 Dynamics and Design Conference 2023(D&D2023)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 分割した粒子群を用いたGPSAによる最適解探索挙動の一考察2023

    • Author(s)
      山仲 芳和, 吉田 勝俊
    • Organizer
      電子情報通信学会技術研究報告 (信学技報)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 状態フィードバックモデルに基づくバランス運動のパラメータ表示(1自由度非線形モデルの提案)2023

    • Author(s)
      中山 響, 中村 友哉, 山仲 芳和, 吉田 勝俊
    • Organizer
      電子情報通信学会技術研究報告 (信学技報)
    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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