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a practical use of force plate treadmill

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  • Kimitake Sato
    replied
    Re: a practical use of force plate treadmill

    Thank you! Yes, I have been checking some work from UMass, and Spalding at Harvard, even some poster presentations (proceedings). And Prof Hamill's and Dr. Irene Davis's former students' lab as well. Many of them do similar work. I will look into it further, thank you again! Kimi,

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  • Ross Miller
    replied
    Re: a practical use of force plate treadmill

    Hi Kimi,

    Not sure if this is exactly what you're looking for, but there's a fairly large volume of literature on step-to-step variability in kinematics and running injury:



    The "New Concepts" paper by Hamill et al. (1999) on the dynamical systems perspective is a good starting place:

    We claim that the traditional view of the variability of disordered movement is not tenable and suggest that there is a functional role for variability in lower extremity segment coupling during locomotion. While the methods described in this paper cannot determine a cause of the injury, they may be …


    I'm not sure if anyone has looked at GRF variability and injury, and I don't think there are yet any longitudinal studies on this (could be wrong there, haven't checked lately). All would be great topics for a study! I very much like the idea of looking at kinematic or GRF variability with and without pace variability.

    Hope this helps,
    Ross

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  • Kimitake Sato
    started a topic a practical use of force plate treadmill

    a practical use of force plate treadmill

    Hi colleagues,

    we are currently building a treadmill with force plate (vertical only) under the belt. Our initial pilot work showed that foot contact time is valid, and magnitude of vertical force is also minimal error as the treadmill stays at 0% incline. What we want to build is to track force (both impact/active, if impact is present) and create a model of force output consistency. It is obvious that force output should be fairly consistent at what is considered "comfortable pace" for many distance runners. However, we have been capturing that once runners (of various levels) start to go above the lactate threshold pace, then force output starts to vary step by step.

    A model we want to create is fairly simple using LabView, and we will use algorithm to detect the force output consistency first and then add a line of 10, 20, 30...% lines so we know once the force consistency starts to vary, it will be seen on the screen. This is to share the output data immediately to coaches and runners who are on the treadmill.

    After all, the main aim is to know the pace threshold from the kinetic data (and hope to match it with physiological pace threshold). I am not sure if pace inconsistency would lead to running-related injury but it would along with a great magnitude of training load at the pace.

    Any critiques, comments are very much welcome for this topic, I would love to hear experts opinion on this.

    Thank you!

    Kimi

    Kimitake (Kimi) Sato, Ph.D., CSCS, USAW, PES, TPI Fitness III.
    International Relation Coordinator
    Dept. of Sport, Exercise, Recreation, & Kinesiology (SERK), PO Box 70671
    East Tennessee State University, Johnson City, TN 37614-0654

    Sport Biomechanist; ETSU designated Olympic Training Site
    High Performance Coach; Center of Excellence for Sport Science and Coach Education

    Office Location: E 233 in Mini-Dome
    Office TEL: (423) 439-5138
    Lab: (423) 439-4655
    email: satok1@etsu.edu
    Skype ID: jpnsatok
    Twitter: @jpnsatok
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