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Development of a posture sensor and sensory biofeedback system for use in gait training of the locomotion disabled

Research Project

Project/Area Number 60850071
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field 電子機器工学
Research InstitutionTokyo Women's Medical College

Principal Investigator

MIYAMOTO Hiroyuki  Institute of Biomedical Engineering, Tokyo Women's Medical College, 医学部, 助手 (80138908)

Project Period (FY) 1985 – 1986
Project Status Completed (Fiscal Year 1986)
Budget Amount *help
¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1986: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1985: ¥2,800,000 (Direct Cost: ¥2,800,000)
Keywordsmotor disorder / locomotion / posture / rehabilitation / sensory sensor / 感覚センサ / 身体障害者 / 感覚フィードバック / 補行補助 / センサ
Research Abstract

For lower-limb amputees or those who have insufficient muscular activity or uncontrollable contractions during functional movements during walking, powered prosthesis or orthosis is a promising device. Even in that case, it is important to inform them of the displacement of the center of gravity so that they may realize a stable walking. If the disabled person has balance deficits, the information of trunk inclination is one of the most useful one from the point of view of rehabilitation. In the present study, the information which have been obtained by the devices situated outside of the subject is now got by sensors put on the subject. It is thus very convenient as there is practically no restriction in its use, and the data can be obtained on-line and in real time. Three kinds of sensors have been developed: posture sensor to measure the inclination in sagittal and frontal planes, potentiometer to measure the relative joint angle, and foot switch sensor to detect the plantar contact … More . In the first year, a preliminary study on the posture sensor was carried out and characteristics were specified for this use. With the three above sensors, it was shown that the displacement may be calculated in real time on a microcomputer. LED display panel was also designed and made to present the information to the subject, where all the calculation is made by hardware circuits. In the second year, as it was clarified that the information on the pelvic inclination is the most important one, a system was designed to measure it, in which the potentiometer is no more used to simplify the system. Foot switch sensor was improved so as to be more reliable, with the use of a cord-type of pressure-sensitive rubber. Data acquisition and analysis are done on 8-bit and 16-bit microcomputers: cadence, inclination in sagittal and frontal planes are displayed with a cursor on CRT and, any of these data can be evaluated interactively. A sensory biofeedback system was fabricated which transform the inclination data into audible tone: the more inclined the pelvis is, the higher tone is generated. The usefulness of the system was verified on normal subjects, and its clinical application is under evaluation. Less

Report

(2 results)
  • 1986 Final Research Report Summary
  • 1985 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 宮本博司: 第9回バイオメカニズムシンポジウム. 9. 429-437 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 宮本博幸: 第9回バイオメカニズムシンポジウム. 9. 439-447 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 宮本博幸: 第1回LST学会大会論文集. 1. 121-124 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 沼尾利夫: 第6回バイオメカニズム学術講演会予稿集. 6. 53-54 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 上田清志: 第7回バイオメカニズム学術講演会予稿集. 7. 59-60 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Hiroyuki,MIYAMOTO: "Prosthetics in "Encyclopedia of Robotics"" John Wiley & Sons, Inc., 2000 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Hiroshi , MIYAMOTO: "Control of a powered orthosis for lower limbs with self-contained posture sensor" Preprint of the 9th Symposium on Biomechanism. 9. 429-437 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Hiroyuki, MIYAMOTO: "Gait control of the powered orthosis for lower limbs with crutches" Preprint of the 9th Symposium on Biomechanism. 9. 439-447 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Hiroyuki, MIYAMOTO: "A visual display of walking state for the powered orthosis for lower limbs" Proc. the 1st annual conference of Life Support Technology Society. 1. 121-124 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Toshio,NUMAO: "Powered walk on a staircase by the powered orthosis for lower limbs" Proc. of the 6th annual conference on Biomechanism. 6. 53-54 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Kiyoshi, UEDA: "Sensory biofeedback system of the posture control using inclinometers" Proc. of the 7th annual conference on Biomechanism. 7. 59-60 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Hiroyuki, MIYAMOTO: John Wiley & Sons, Inc.Prosthetics in "Encyclopedia of Robotics", 15p in 2000p (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] エル・エス・ティ学会大会論文集. 1巻. (1985)

    • Related Report
      1985 Annual Research Report
  • [Publications] バイオメカニズム学会シンポジウム前刷集. 9巻. (1985)

    • Related Report
      1985 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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