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Diss. Abstr.: Jumping from Structure to Control

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  • Diss. Abstr.: Jumping from Structure to Control

    Dear Biomch-L readers,

    On Thursday this week (22 October), one of our subscribers, Arthur ("Knoek")
    van Soest will defend in public his PhD Thesis "Jumping from Structure to
    Control - A Simulation Study of Explosive Movements". Knoek has kindly made
    available the summary of his thesis, which I have stored on the Biomch-L
    fileserver. Interested readers may retrieve it by sending the following
    command either interactively (EARN/BITNET only) or in the main body of an
    email note to ListServ@hearn.bitnet / ListServ@nic.SURFnet.NL (Subject: line


    Below are the first two paragraphs of his summary. Knoek has indicated
    that he has a number of copies left for interested Biomch-L readers.

    Knoek, good luck in three days from now!



    A Simulation Study of Explosive Movements

    Ph.D. Thesis of:

    Arthur J. van Soest

    Faculty of Human Movement Sciences
    Vrije Universiteit
    van der Boechorststraat 9
    NL 1081 BT Amsterdam
    email: KNOEK@SARA.NL

    22 October 1992


    The central question in the area of 'movement control' is how
    animals and humans organize their movements in order to meet specific
    environment-related goals (e.g. thread a needle; jump a fence). From a
    purely scientific point of view, this question is interesting in its
    own right. In addition, partial answers to this question are
    applicable in fields like rehabilitation medicine, sports and
    ergonomics. The actor and the environment, being the essential
    elements in the central question mentioned, are mutually coupled: on
    the one hand, we change the environment through our movements (which
    are based on perceptual cues), and on the other hand we perceive the
    (changes in the) environment.
    In this thesis one of these actor-environment couplings is
    studied. We focus largely on the 'output' side of the actor, i.e. the
    high energy coupling between actor and environment. Furthermore, we
    restrict ourselves to a purely mechanical perspective. Specifically,
    this study is aimed at improving our understanding of the relation
    between muscle stimulation pattern and structure of the musculo-
    skeletal system on the one hand, and achievement on the other hand.
    Many specific questions in this respect cannot be answered in an
    experimental setting because the independent variables do not lend
    themselves to experimental manipulation. Therefore, mathematical
    modelling and simulation have a prominent place in this study.