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2005 Fiscal Year Final Research Report Summary

Intensive Training Therapy with Functional Electrical Stimulation for Recovery of Walking Function in Hemiplegics

Research Project

Project/Area Number 16300178
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Rehabilitation science/Welfare engineering
Research InstitutionChiba University

Principal Investigator

YU Wenwei  Chiba University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (20312390)

Co-Investigator(Kenkyū-buntansha) YOKOI Hiroshi  University of Tokyo, Graduate School of Engineering, Associate Professor, 大学院・工学系研究科, 助教授 (90271634)
TATSUOKA Hozumi  Chiba University, Faculty of Engineering, Professor, 工学部, 教授 (10125940)
Project Period (FY) 2004 – 2005
KeywordsFunctional Electrical Stimulation / Recovery of Walking Function / Artificial Reflexes / Perturbation during Walking / Intensive Training Therapy / Neuro-musculo-Skeletal Model / Reflexive Function
Research Abstract

The purpose of this study is to develop the intensive training therapy with the assists of functional electrical stimulation to help the recovery of walking function in hemiplegic patients. To realize the purpose, we developed a walking training station which consists of 1) a split-belt walking machine that can enable perturbed walking, 2) a support frame that could allow the patients to do safe training, 3) a functional electrical stimulation system that could not only assist the normal walking for hemiplegic patients, but also improve the balance maintenance of patients by artificial reflexes, 4) a set of measurement devices to monitoring the patients' walking.
Besides, we also developed a neuro-musculo-skeletal model which could be used to compare and analyze both the normal walking and perturbed walking.
Using the walking training station and simulation, a series of gait experiment and computer simulation experiment were carried out. The followings are the results and discussion.
1) T … More he reflexive responses are phase-dependent. That is, different phase of perturbation occurrence would cause difference reflexive responses. Especially, the phase difference resulted in the amplitude difference of muscle activity, rather than the difference of response latency. The walking assist should also take the perturbation occurrence into consideration.
2) The simulator with a reflexive pathway which was implemented by using the EMG profiles acquired and processed in gait experiments with slip perturbation, could respond to the slip perturbation and recover from the perturbed gait to keep walking. That is, the reflexive pathway could improve the perturbation-resistance for walking.
3) When constructing the control system for assistive devices, time varying and individual dependent users characteristics should be taken into consideration, so that, the users could be appropriately assisted. An interaction based learning method was proposed and applied to acquire not only the control mechanism of FES, but also the perturbation occurrence detection system adaptively.
4) Patients received training on the walking training station. With the assist of FES, the training on the station could improve not only the posture and the speed during walking, but also the motivation of patients.
5) Using the walking speed on walking training station, and symmetricity of the walking as the indexes, the training effect could be evaluated. The evaluation before and after the training showed that, the training could improve the walking function of patients. Less

  • Research Products

    (14 results)

All 2006 2005 Other

All Journal Article (13 results) Book (1 results)

  • [Journal Article] Mutual Adaptation among Man and Machine by using f-MRI analysis2006

    • Author(s)
      Hiroshi Yokoi
    • Journal Title

      Intelligent Autonomous Systems 9

      Pages: 954-962

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Detecting Perturbation Occurrence during Walking2006

    • Author(s)
      Yoko Hagane, Wenwei Yu, Tamotu Katane, Masaki Sekine, Toshiyo Tamura, Osami Saitou
    • Journal Title

      11^<th> ICPE, International Conference on Precision Engineering (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] An Artificial Reflex Improves the Perturbation-Resistance of a Human Walking Simulator2006

    • Author(s)
      Wenwei Yu
    • Journal Title

      World Congress on Medical Physics and Biomedical Engineering (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Chapter 4 : An Interaction Based Learning Method for Assistive Device Systems,2006

    • Author(s)
      W.Yu.H.Yokoi, Y.Kakazu
    • Journal Title

      Focus on Robotics Research, ISBN:1-59454-594-4 (Ed : John X.Liu) (Nova Publishers)

      Pages: 123-159

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Measurement and Stimulation Verification of Reflexive Responses to Perturbation during Walking2006

    • Author(s)
      Shahed Sarwar, Wenwei Yu, Masaru Kumagai, Masaki Sekine, Tamotsu Katane, Toshiyo Tamura, Osami Saito
    • Journal Title

      Intelligent Autonomous Systems 9 (T.Arai Et al., (eds.)) (IOS Press)

      Pages: 812-819

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Mutual Adaptation among Man and Machine by using f-MRI analysis,2006

    • Author(s)
      Hiroshi Yokoi, Alejandro Hernandez Arieta, Ryu Katoh, Takashi Ohnishi, Wenwei Yu, Tamio Arai
    • Journal Title

      Intelligent Autonomous Systems 9 (T.Arai Et al., (eds.)) (IOS Press)

      Pages: 954-962

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Measurement and Stimulation Verification of Reflexive Responses to Perturbation during Walking2005

    • Author(s)
      Shahed Sarwar
    • Journal Title

      Intelligent Autonomous Systems 9

      Pages: 812-819

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 歩行時の外乱刺激に対する反射の計測と解析2005

    • Author(s)
      熊谷優
    • Journal Title

      ライフサポート 17・2

      Pages: 50-51

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Measurement and Analysis of Reflex Responses to Perturbation During Walking-Towards the Realization of Artificial Reflex2005

    • Author(s)
      WenweiYu
    • Journal Title

      Proc. of the 27^th annual International Conference of the IEEE Engineering In Medicine and Biology Society 27

      Pages: 1878

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Measurement and Analysis of Reflex Responses to Perturbation During Walking-Towards the Realization of Artificial Reflex2005

    • Author(s)
      Wenwei Yu, Masaru Kumagai, Sarawar Shahe, Tamotsu Katane, Hiroshi Yokoi, Masaki Sekine, Toshiyo Tamura, Osami Sait
    • Journal Title

      Proc.of the 27^<th> annual International Conference of the IEEE Engineering In Medicine and Biology Society (EMBS05) 1878

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Measurement and Analysis of Reflexes to Perturbation during Walking2005

    • Author(s)
      Masaru Kumagai
    • Journal Title

      Life Support (in Japanese) Vol.17, No.2

      Pages: 50-51

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Detecting Perturbation Occurrence during Walking

    • Author(s)
      Yoko Hagane
    • Journal Title

      Proceedings of International Conference on Precision Engineering (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] An Artificial Reflex Improves the Perturbation-Resistance of a Human Walking Simulator

    • Author(s)
      Wenwei Yu
    • Journal Title

      Proceedings of World Congress on Medical Physics and Biomedical Engineering 2006 (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Focus on Robotics Research, Chapter 4 : An Interaction Based Learning Method for Assistive Devive Systems2006

    • Author(s)
      WenweiYu
    • Total Pages
      36
    • Publisher
      Nova Publishers
    • Description
      「研究成果報告書概要(和文)」より

URL: 

Published: 2007-12-13  

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