Announcement

Collapse
No announcement yet.

Force vs. Time summary

Collapse
This topic is closed.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Force vs. Time summary

    My original request:

    >I have been unable to find any papers giving data (either in graphic
    >or chart form) showing the force-time curve for concentric or
    >eccentric conditions at a fixed velocity of contraction. Plenty out
    >there on isometric. Any suggestions.
    >

    Here are the responses, separated with -----'s. Thanks to all. Craig

    ---------------------------------------------------------------------------
    In response to your message below:
    This sort of data should be available from any sort of commercially
    available dynamometer. It is certainly available from the Kin-Com
    dynamometer in their "Continuous" way of collecting data for evaluation
    using the isokinetic mode of exercise. The usual way to display this sort
    of data however is as a torque (force)- angular displacement curve where
    the accelerative and decelerative phases may be removed. These phases
    obviously change the display of data if it is graphed as a torque-time
    curve. Why do you wish to gather (or more particularly, display) data as a
    torque-time curve?

    Geoff Strauss
    ------------------------------------------------------------------------------

    >From James.Ashton-Miller@um.cc.umich.edu Wed Sep 14 22:18:24 1994

    We have data for ankle plantar/dorsiflexion in
    concentric contractions. We are currently
    revising a manuscript on the topic.
    ..
    jaam
    ~~~~
    ------------------------------------------------------------------------------
    >From HPHORTOB@ECUVM.CIS.ECU.EDU Thu Sep 15 06:33:31 1994

    I am preparing a manuscript on it, have original tracinggs.
    Would like a copy. (J Physiol is the target).

    TIBOR HORTOBAGYI
    251 SPORTS MEDICINE BLDG.
    EAST CAROLINA UNIVERSITY
    GREENVILLE, NC 27858
    PHONE (919) 757 - 4564
    EMAIL: HPHORTOB AT ECUVM1
    ------------------------------------------------------------------------------
    >From rosa@cs.indiana.edu Thu Sep 15 08:04:11 1994

    Try Bosco and Conconi (I am not sure of the spelling for Conconi).
    Also, you could try to contact companies that sell isokinetic machines
    and ask them for these type of refernces.
    Rosa
    ------------------------------------------------------------------------------
    >From wanderst@yolanda.hper.indiana.edu Thu Sep 15 08:50:00 1994

    I have a book with several graphs of human force-velocity and force-power
    curves for eccentric and concentric conditions. The book is titled "Human
    Muscle Power" and editors are N. Jones, N. McCartney and A. McComas.

    Bill

    ------------------------------------------------------------------------------
    >From Rick_Lieber@SOM-LRC.ucsd.edu Thu Sep 15 12:35:55 1994

    Dear Craig,
    We have published such traces in:

    Lieber, R.L., T. McKee-Woodburn and J. Frid n. Muscle damage induced by
    eccentric contractions of 25% strain. J. Appl. Physiol. 70:2498-2507, 1991.

    and I would be happy to provide others for you. Also, see the classic curves
    published by Katz in:

    Katz, B. The relation between force and speed in muscular contraction. J.
    Physiol. (Lond.) 96:45-64, 1939.

    and A.V. Hill in:

    Hill, A.V. The mechanics of active muscle. Proceedings of the Royal Society
    of London. Series B: Biological Sciences (London) 141:104-117, 1953.

    I hope these are helpful,

    Sincerely,
    R. Lieber
    ------------------------------------------------------------------------------
    >From KOLLJO1@VM.AKH-WIEN.AC.AT Fri Sep 16 06:22:48 1994

    Hi from Vienna

    We did con/ex/concentric contraction tests under isokinetic conditions for
    the knee. The second reference show graphs of the sagittal knee moment
    on several pages. So it is woth to look at, even it is written in German.

    Bochdansky Th. et al., Studying Torque and EMG-changes during dynamic maximal
    voluntary contraction, XIV ISB Congress Paris 1993, I/192-193.

    Bochdansky Th., Die dynamometrische Beurteilung der Muskelkraft bei konzentrisc
    her und exzentrischer Muskelarbeit, Oesterreichische Zeitschrift fuer
    Physikalische Medizin, Suppl. 4/1-39.


    Josef Kollmitzer DI.
    Clinic PM&R
    Waehringer Guertel 18-20
    A-1090 Vienna, Austria
    -------------------------------------------------------------------------------
    >From
    Thu Sep 15 23:32:02 1994

    Craig

    Try "Eur J Appl Physiol. 1994:68.41-47." An evaluation of of different
    protocols for measuring the force-velocity relationship of the quadriceps
    muscle. James, Sacco, Hurley & Jones.

    If you need more gimme an e'mail I've got heaps.

    Cheers

    Colin James
    -------------------------------------------------------------------------------
    >From HPHORTOB@ECUVM.CIS.ECU.EDU Fri Sep 16 11:40:15 1994

    This is a repeat message. I am just about to publish such curves
    in young and aged subjects. Let me know if you wish to see
    data in press (not published yet). T.

    TIBOR HORTOBAGYI
    251 SPORTS MEDICINE BLDG.
    EAST CAROLINA UNIVERSITY
    GREENVILLE, NC 27858
    PHONE (919) 757 - 4564
    EMAIL: HPHORTOB AT ECUVM1
Working...
X