RRA adjusted model

Provide easy-to-use, extensible software for modeling, simulating, controlling, and analyzing the neuromusculoskeletal system.
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Julian Atkinson
Posts: 52
Joined: Thu Feb 25, 2016 12:39 am

RRA adjusted model

Post by Julian Atkinson » Sun Apr 23, 2017 11:34 pm

Hi there

I am using one trial to get an RRA adjusted model with the redistributed weight, however when I use that model for the same subject in different trials from the same session it doesn't appear to improve my RRA results at all. This seems strange to me, is this not typical?

Thanks,
Julian
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jimmy d
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Joined: Thu Oct 04, 2007 11:51 pm

Re: RRA adjusted model

Post by jimmy d » Mon Apr 24, 2017 8:19 am

It is typical to have an RRA adjusted model for each trial. Motion capture errors are non-linear and depend on numerous factors; errors in one trial are not exactly the same as errors in another. When you perform RRA you are trying to adjust unknown parameters in your model to minimize the error in that trial. So no, I would not expect an RRA-adjusted model from one of your trials to work across the board.
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