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Summary: ambulant system for measuring (vertical) GRF

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  • Summary: ambulant system for measuring (vertical) GRF

    Dear Biomch-L members,

    I would like to thank all of the Biomch-L subscribers who
    responded to my question for information on an ambulant
    measuring device for vertical ground reaction force.

    Thanks!

    Henri Hurkmans
    ------------------------------------------------
    Here is a summary of the replies:

    From:Fullmer Jim

    I don't know of anything currently on the market. If I were trying to
    do this, I know tekscan (http://www.tekscan.com) uses pressure
    mapping sheets that could be placed in the shoe.

    They have a "black box" that will turn the pressure mapped data
    into a single signal which could be saved on a portable hard drive or
    communicated with a remote computer via wireless technology.

    Jim Fullmer
    Human Factors Engineer
    e-mail: FullmerJim@JohnDeere.com
    John Deere Dubuque Works Phone: (319) 589-6695
    18600 S. John Deere Rd. Fax: (319) 589-5464
    P.O. Box 538
    Dubuque, IA 52004-0538
    --------------------------------------------------------------------------------------------------

    From: Joseph W. Klaesner

    We are currently working on such a system in our laboratory (we
    have two papers currently "in press" on it). And you are right that
    there is no current commercial system. The closest such system
    is an accelerator based system (Step Activity Monitor system)
    which straps to the ankle. Dr. J. Harris at Wisconsin
    School of medicine has developed a system similar to what we are
    developing. Cleveland Medical Devices also is in the development
    stage of a system to monitor foot pressures for long lengths of
    time. These pressure based systems are much more difficult to
    develop that you would think. Our system will be ready in about 2
    years, Cleveland's may be available shortly before that.

    Joseph W. Klaesner, Ph.D.
    Research Engineer/Assistant Research Professor
    Washington University School of Medicine
    Program in Physical Therapy
    4444 Forest Park Blvd.
    Rm. 1101, Box 8502
    St. Louis, MO 63108-2212
    (314) 286-1436
    (314) 286-1410 (FAX)
    email: klaesnej@msnotes.wustl.edu
    Home Page: http://medicine.wustl.edu/~klaesnej/
    --------------------------------------------------------------------------------------------------

    From: Clifford M.Les, DVM, PhD

    Contact Dr. Sue Bowley (sbowley@mail.arc.nasa.gov) at NASA
    Ames research center. They have a insole GRF device attached to
    a fannypack that can collect data for several days.

    Clifford M. Les, DVM, PhD
    Bone and Joint Center
    2015 Education and Research Building
    Henry Ford Hospital
    2799 West Grand Boulevard
    --------------------------------------------------------------------------------------------------

    From:Uwe Kersting

    We've used the novel Pedar system quite extensively for long term
    workspace investigations. Although your demands seem to be not
    fulfilled by the system we actually have, I could imagine that novel
    maybe offers some special software packages which might be a
    way for you to go. Try http://www.novel.de.

    Another company which was involved in our long term
    measurements is biovision.

    Dr. Uwe G. Kersting
    German Sport University Cologne
    Institute for Athletics and Gymnastics
    Carl-Diem-Weg 6
    D50933 Cologne
    - Germany -
    Phone: ++49 221 4982 416
    Fax: ++49 221 4973 454
    e-mail: kersting@hrz.dshs-koeln.de
    --------------------------------------------------------------------------------------------------

    From:Ross.Anderson

    I have just finished a review article for physiological measurement in
    ambulatory subjects. It will hopefully be published by the IOP in
    Physiological Measurement in February. It covers the technology
    of data logging devices not telemeterised, which can give you more
    flexibility. There are systems by Vitaport and Onset which have
    large storage capacities which may allow collection for 10hrs. If
    you require more info I may be able to forward you a copy of the
    article.

    ROSS ANDERSON
    Dept of Sport and Exercise Sciences and
    Centre for Biomedical Electronics
    University of Limerick
    IRELAND
    Tel - +353 (0) 86 6090866 or +353 (0) 61 202810
    Fax - +353 (0) 61 330431
    e-Mail - ross.anderson@ul.ie
    WWW - www.ul.ie/~pess/
    --------------------------------------------------------------------------------------------------
    End of replies
    ------------------------------


    Henri Hurkmans
    afd. Fysiotherapie/Dijkzigt
    kamer: H-017
    tst.: 33950
    email: hurkmans@fyth.azr.nl

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