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Re: Normalised Force-Length and Force-Velocity data for humanlower-extremity muscles

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  • Re: Normalised Force-Length and Force-Velocity data for humanlower-extremity muscles

    Thank you all for the prompt replies and the directions which are very helpful. Below I post a summary of responses to my message:

    1) A very good source is Delp's lower extremity model:, click on "muscle file".

    Normalized force-length and force-velocity relationships from this file
    are attached below.

    Force is normalized to maximum force, length to optimal fiber length,
    and velocity to maximal shortening velocity.

    Ton van den Bogert


    A.J. (Ton) van den Bogert, PhD
    Department of Biomedical Engineering
    Cleveland Clinic Foundation

    2) We are collecting torque - position and torque-velocity data at the
    knee, but it is not for individual muscles, but rather net joint
    torque... Laura

    Laura Frey Law, PT, PhD
    Assistant Professor
    Physical Therapy and Rehabilitation Science
    The University of Iowa
    1-252 Medical Education Bldg
    Iowa City, IA 52242
    (319) 335-9804

    3) You can look at the Prof. Delp's dissertation in 1990:
    Delp, S.L. (1990) Surgery simulation: a computer graphics system to analyze and design musculoskeletal reconstructions of the lower limb. Dissertation, Stanford University.

    Here is his lab's website:

    Good luck!


    Leonidas A. Spyrou
    Dipl. Mechanical & Industrial Engineer, M.Sc.
    PhD Candidate in Computational Mechanics-Biomechanics

    University of Thessaly
    School of Engineering
    Dept. of Mechanical and Industrial Engineering
    Pedion Areos
    38334 Volos

    Tel.: +30-2421-074108, +30-2421-096754