MoCap model showed muscle overload in the inverse dynamics analysis

Hi
My C3D file is a normal person’s gait data, but there is muscle overload in the inverse dynamics analysis, Can you tell me how to solve this problem? Thank you very much.


Best regards
zzs

Hi

Sorry for the slow response,

There can be many reasons for this.

From the image it seems that you have some large errors on the markers, so it looks like the parameter optimization or the marker tracking is not ideal, this would be the first thing to look into.

Best regards
Søren

Hi Søren
Thank you very much for your reply. I wore shoes for this C3D measurement. But this error disappears when I don’t wear shoes. I don’t know if wearing shoes has an effect on inverse dynamics.

Best wishes
zzs

Hi zzs22500,

Wearing shoes should not change the model much assuming they are not very high.

It still looks like there are some errors on the makers, and rerunning the parameter optimization might help.

Best regards
Søren