I have posted the right and left GH joint reaction results for one
push stroke, and the results I’m getting just don’t seem to make
sense, especially because my input force and moment data for each side
seems fairly symmetrical. I changed my dummy segments to correctly
follow the palm and the arc of the pushrim, however I am still getting
some confounding data.
Any suggestions or ideas would be helpful because right now I am at a
loss.
Thanks,
Sarah
Hi Sarah>>> >I have taken a look at the graphs you are rigth they look at bit
strange, if the input data is symmetrical.> >It is difficult for me to point
out, the exact reason without have seen the model in detail, but I have some
suggestion on what to check:>>> >1: make sure all the reactions in the marker
drivers and joint drivers are set to zero like Reaction.Type={0,0,0} number of
zeros depends on number of dof. By default the driver will have reaction type =1
meaning that it will carry load. So you need to make sure the drivers do not
carry any load, this should be done by the muscles. A single reaction in a
driver could disturb the model significantly.>>> >2: The dummy segments should
be oriented exactly and the coordinate system in which you measure the data in.
I am not sure if this is what you describe.>>> >3: If you think the error is
related to the force applied in the dummy segments. Try to out comment it and
see if this makes the model symmetrical. If this is the case then the error is
related to the orientation of the dummy segments or their setup.>>> >>I hope
these suggestion helps you move on, otherwise please ask again>>> Best
regards>>AnyBody Support>>> >
— In anyscript@yahoogroups.com, “Sarah R. Sullivan” <sarsulli@e…> wrote:
>
> I have posted the right and left GH joint reaction results for one
> push stroke, and the results I’m getting just don’t seem to make
> sense, especially because my input force and moment data for each side
> seems fairly symmetrical. I changed my dummy segments to correctly
> follow the palm and the arc of the pushrim, however I am still getting
> some confounding data.
>
> Any suggestions or ideas would be helpful because right now I am at a
> loss.
>
> Thanks,
> Sarah
>
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