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Quantitative evaluation of gait adaptation using leg motion entropy analysis

Research Project

Project/Area Number 25893223
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Orthopaedic surgery
Research InstitutionDokkyo Medical University

Principal Investigator

Tochigi Yuki  獨協医科大学, 医学部, 准教授 (70711737)

Project Period (FY) 2013-08-30 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords歩行解析 / 歩行機能計測 / ロコモティブシンドローム / 運動器障害 / 歩行不安定性 / エントロピー / 慣性モニター / 変形性膝関節症 / 医学 / 歩行機能 / リハビリテーション / 医工学
Outline of Final Research Achievements

The present project aimed to establish the rationale of a novel simplified gait analysis method, namely the Entropy of Leg-Linkage Inertial Signals (ELLIS) method. Specifically, work was proposed to test its capabilities in detecting decrease of gait flexibility associated with increased stress, and in addressing peri-operative longitudinal changes of gait quality in clinical cases of knee osteoarthritis. The experimental data have indicated that physiological variability in leg kinematics increases with increased stress in gait, supporting the basic concept of the ELLIS method. The data also have suggested technical challenges in standardization about gait velocity, which is important for eliminating effects from body size variability and general physical status.

Report

(3 results)
  • 2015 Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report

Research Products

(5 results)

All 2015 2014 2013

All Presentation (5 results) (of which Invited: 1 results)

  • [Presentation] 脚運動エントロピー解析における同期両脚データ同時解析が検出力に与える効果.2015

    • Author(s)
      栃木祐樹,宮崎千枝子,増田陽子,大関 覚
    • Organizer
      第42回日本臨床バイオメカニクス学会
    • Place of Presentation
      東京都千代田区
    • Year and Date
      2015-11-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] 脚運動エントロピー解析による歩行動揺に対する動作適応の定量的評価2015

    • Author(s)
      栃木祐樹,増田陽子,大関 覚
    • Organizer
      第30回日本整形外科学会基礎学術総会
    • Place of Presentation
      富山県富山市
    • Year and Date
      2015-10-22
    • Related Report
      2014 Annual Research Report
  • [Presentation] 変形性関節症の進行過程への『関節不安定性』の関与2014

    • Author(s)
      栃木祐樹
    • Organizer
      第41回日本臨床バイオメカニクス学会
    • Place of Presentation
      奈良県奈良市
    • Year and Date
      2014-11-21
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Speed-dependent increase of the entropy of gait kinematics in asymptomatic adults.2013

    • Author(s)
      Yuki Tochigi, Neil A. Sagal
    • Organizer
      8th Combined Meeting of Orthopaedic Research Societies
    • Place of Presentation
      Venice, Italy
    • Related Report
      2013 Annual Research Report
  • [Presentation] 健常成人における歩行時脚運動エントロピーの速度依存性変化2013

    • Author(s)
      栃木祐樹, Segal NA
    • Organizer
      第40回日本臨床バイオメカニクス学会
    • Place of Presentation
      神戸市
    • Related Report
      2013 Annual Research Report

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Published: 2013-09-12   Modified: 2019-07-29  

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