Dear Hugo, Thank you for sharing your issue. The forces you are analyzing are sphere contact forces, which are not intended to be used as GRF, so don't go crazy with useless calculations :mrgreen: From your description, I suspect the issue is due to an initial excessive compenentration of the foot w...

Thank you for the relpy.
After a quick check on the kinemtatics, it seems facing some drifting (model CoM shifts upward) that can be the cause the problem. Have you tried using a refined kinematics?
If you are keen to also share the adopted model I may broader assist you.
Cheers,
Andrea

Dear,
Thank you for the message.
What type of kinematics are you using?
Have you alredy tried to slightly increase the input force ?
Cheers,
Andrea

Dear,
Thank you for sharing your message.
What kind of model and kinematics are are you using to run the tool?
Cheers,
Andrea

Hi Moha, Thanks for the message. OpenGRF_v1_1 only supports full-body MSK models right now, so it was trying to load a hand body and ended up with an error. We're working on a fix that should be out in the next release. In the meantime, please feel free to use any other full-body model for your rese...

Hi Jap,

Thank you for reporting this issue, and apologies for the delayed response.

Which model are you using to run the code? It seems that the Geometry folder has not been uploaded in the model. Please note that the current OpenGRF version only supports full-body models.

Cheers,
Andrea

Hi Jeff,

Apologies for the delayed response. To answer your question, fmicon has not been used in the code, and while a Python extension is planned, I cannot provide an estimated timeline at this point.

Cheers,
Andrea

Dear Jeff, Thank you for your interest in this tool! A preprint detailing the methods and calculations will be available soon. In the meantime, you can run the current version of OpenGRF using OpenCap data without requiring any MATLAB expertise. The provided instructions will make the process straig...

Dears, Happy Holidays and thank you very much for providing such valuable feedback. Under the Christmas tree you will also find a new version of OpenGRF (v1.1) (https://simtk.org/frs/download_confirm.php/file/6956/OpenGRF_v1_1.zip?group_id=3126) which should also solve the problems you raised :mrgre...

Hi HunMin Kim, Thank you for the kind message :D The issue you are facing may be related to the kinematics file time vector that starts from negative values (this may happen when you filter time vector, for instance). My advice is to ensure non-negative time values and if this does not solve the iss...