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Development of the Fall Risk Assessment Tool Based on a Perception-Motion Model

Research Project

Project/Area Number 20K19858
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 61030:Intelligent informatics-related
Research InstitutionThe University of Tokyo (2022-2024)
Tokyo Institute of Technology (2020-2021)

Principal Investigator

Uchiyama Emiko  東京大学, 大学院工学系研究科(工学部), 助教 (30845269)

Project Period (FY) 2020-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords転倒予防 / 姿勢制御 / リスクアセスメント / 知覚モデル / 運動モデル / データ科学 / データマイニング / バランス制御 / モデル同定 / バランス制御器 / 視知覚モデル / 筋協調解析 / 赤池情報量 / テキストマイニング / 転倒実態解明 / リスク評価 / 動態解析
Outline of Research at the Start

躓き・ふらつきに着目し,リスク因子の探索・発見を目的として心身機能低下が転倒を引き起こす機序のモデル化,予防のためのスクリーニングテストの開発,転倒を引き起こす要因のデータ科学的な探索手法提案を目指す.
身体機能低下によるパフォーマンス低下及び認知機能低下による環境情報の知覚のずれのモデル化を行うことで,心身機能低下が転倒のリスクを引き上げることを定量的に説明可能にする.また統計情報を活用することによって質問紙・時系列情報から未知のリスク因子を探索可能にする理論的枠組みを構築する.更に,物理モデル及びマルチモーダルデータから転倒リスクの識別器を構築し,高リスク群のスクリーニングテストを開発する.

Outline of Final Research Achievements

For the stumble risk, the depth perception is known as the risk factor, and the effect of the posture (depression angle) to detect stimuli from the depth direction was experimentally shown. For the stagger risk factor, the head-shaking test, which tests the balance ability of the person was proposed, and the model which examines the balance ability using the control parameter identification method under the assumption of the control model in the static standing before and after this test was also proposed. Through the analysis of the model for the head-shaking test, we confirmed the muscle activity increased after the head shaking. Also, as the way of searching the fall risk factors, several method using data science were developed: The similarity verification method using Akaike information quantity, the text mining method for exploring fall factors was developed, and technique which extracts common features related to the fall risk from multi-modal multiple data sets.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果では,知覚と姿勢の関係,姿勢制御を,モデルによって定量的に議論する方法が得られた.これらはヒトの行動に数理的な表現を与え,客観的にリスクアセスメントを行うための基盤となる.また,本研究で開発されたバランス機能テストは,5秒で10回首を振り,その前後での立位姿勢の変化を確認するもので,医療・介護に関わる専門職のリスクアセスメントの負担低減という点に社会的意義がある.データ科学的な転倒因子探索手法は,近年ますます高まるオープンサイエンスにおいて,ますます活用が期待される.特に,本研究成果を活用し,オープンデータを組み合わせて転倒因子を探索できれば,データ取得コストの大幅減が期待される.

Report

(6 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (17 results)

All 2025 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 3 results) Remarks (3 results)

  • [Int'l Joint Research] Universiti Sains Malaysia(マレーシア)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] ENSAM Paris(フランス)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] University of Novi Sad(セルビア)

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Coordinate System Transformation Method for Comparing Different Types of Data in Different Dataset Using Singular Value Decomposition2025

    • Author(s)
      Emiko Uchiyama, Wataru Takano, Yoshihiko Nakamura, Tomoki Tanaka, Katsuya Iijima, Gentiane Venture, Vincent Hernandez, Kenta Kamikokuryo, Kenichiro Yabu, Takahiro Miura, Kimitaka Nakazawa, Bo-Kyung Son
    • Journal Title

      IEEE TRANSACTIONS ON COMPUTATIONAL SOCIAL SYSTEMS

      Volume: -

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study on Fact-Finding Investigating of Falls using Interview Survey to The Hospitalized Patients Who Had Experienced Falls-Caused Hip Fractures2021

    • Author(s)
      内山 瑛美子, 高野 渉, 中村 仁彦, 今枝 秀二郞, 孫 輔卿, 松原 全宏, 飯島 勝矢
    • Journal Title

      Journal of the Robotics Society of Japan

      Volume: 39 Issue: 2 Pages: 189-192

    • DOI

      10.7210/jrsj.39.189

    • NAID

      130008002450

    • ISSN
      0289-1824, 1884-7145
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Elderly Fall Prevention in Home2025

    • Author(s)
      Emiko Uchiyama
    • Organizer
      The 9th SNU-UTokyo Joint Workshop 「Diverse Mechanical Engineering」
    • Related Report
      2024 Annual Research Report
  • [Presentation] Head Shaking Test and Its Validity Considering from the Point of View of Muscle Activities2024

    • Author(s)
      Emiko Uchiyama
    • Organizer
      2024 46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HEAD SHAKING TEST: HUMAN BALANCE ABILITY EVALUATION TEST BY ESTIMATING CONTROL PARAMETERS FOR FALL PREVENTIONS2023

    • Author(s)
      Emiko Uchiyama
    • Organizer
      The 6th Jc-IFToMM International Symposium(第29回日本IFToMM会議シンポジウム)
    • Related Report
      2023 Research-status Report
  • [Presentation] 静止立位状態の制御器を仮定したバランス失調のモデル化2023

    • Author(s)
      内山瑛美子
    • Organizer
      第41回日本ロボット学会
    • Related Report
      2023 Research-status Report
  • [Presentation] System Stability Evaluation of Head-Shaking Test Using Balance Controller Parameters2023

    • Author(s)
      Emiko Uchiyama
    • Organizer
      The 16th IFToMM World Congress [WC2023]
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] 歩きスマホ時の検出能変化の調査2022

    • Author(s)
      稲村圭吾
    • Organizer
      LIFE2022(第21回日本生活支援工学会大会・日本機械学会 福祉工学シンポジウム2022・第37回ライフサポート学会大会)
    • Related Report
      2022 Research-status Report
  • [Presentation] Muscle Cooperation Analysis Using Akaike Information Criteria for Anterior Cruciate Ligament Injury Prevention2020

    • Author(s)
      Emiko Uchiyama
    • Organizer
      42nd Annual International Conferences of the IEEE Engineering in Medicine and Biology Society in conjunction with the 43rd Annual Conference of the Canadian Medical and Biological Engineering Society
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] スポーツ外傷予防のための筋張力時系列データ解析手法の検討2020

    • Author(s)
      内山瑛美子
    • Organizer
      日本機械学会ロボティクス・メカトロニクス講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 転倒・骨折者へのインタビューデータを用いた転倒実態調査手法の検討2020

    • Author(s)
      内山瑛美子
    • Organizer
      第38回ロボット学会学術講演会
    • Related Report
      2020 Research-status Report
  • [Remarks] 所属研究室Webサイト

    • URL

      http://gvlab.jp

    • Related Report
      2024 Annual Research Report
  • [Remarks] 研究者個人Webサイト

    • URL

      http://www.euchiyama.jp

    • Related Report
      2024 Annual Research Report
  • [Remarks] 研究代表者の個人ページ

    • URL

      https://www.euchiyama.jp/publication

    • Related Report
      2023 Research-status Report 2022 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2026-01-16  

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