Model crashes after changing muscle architectural properties

[Ran Sopher]

Dear all,

I would be truly thankful for your advice..

I downloaded the model available here: https://simtk.org/frs/download.php?file_id=4079 and followed the tutorial here: https://www.youtube.com/watch?v=ly4rhOOifO0 to derive joint reaction forces. The model successfully converged and I have the results.
I then tried to adjust the muscle architectural properties (max_isometric_force and pennation_angle_at_optimal) according to data from another reference to see how this might affect the results. I followed the same instructions again, but the model crashed.
Could any of you please advise on what I should do? the *.log file and *.osim file are attached here: https://drive.google.com/folderview?id= ... sp=sharing
I would be thankful for any help.

Regards,
Ran

[jimmy d]

Hi Ran,

The issue is most likely due to the model not being able to generate enough force. Can you post the error message you are getting?

Cheers,
-j