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Looking for Oscar Pistorius' step frequency

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  • Looking for Oscar Pistorius' step frequency

    Hello Colleagues,

    I've been trying to fit Oscar Pistorius' performance into the spring mass
    model. I found his height (1.68 m) and mass (80.6 kg) and estimated his leg
    length from Winter's Table (0.53H). I tried to determine his step frequency,
    but the film quality on the web is too course. It looks like it is about 3.7
    Hz. Does anyone have a video of him in competition that they can use to
    estimate his step frequency?

    An estimate of his CM displacement or the aerial time would also be very
    helpful.

    I want to use the model to calculate his spring-leg compression, specific
    mechanical power output (w/kg) and duty factor and compare them with those of
    able-bodied runners.

    I processed a few sample runs with the model, but they are only estimates:

    _http://members.aol.com/MathPhysicsModel/OscarPistorius.jpg_
    (http://members.aol.com/MathPhysicsModel/OscarPistorius.jpg)

    Ted Andresen
    St. Petersburg, FL






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