How to get the force of each muscle through opensim

[han jintao]

Now I only have my track file .trc and osim file,Do I have a way of get the force of each muscle through opensim?
IF i cant ,What else do I need to do?
I'm very grateful for any of your answers
han

[Thomas Uchida]

It might help to read the "Overview of the OpenSim Workflow" page in the Confluence documentation (https://simtk-confluence.stanford.edu/d ... m+Workflow). Also see the tutorials and examples here: https://simtk-confluence.stanford.edu/d ... +Tutorials.

[han jintao]

Thank you , Thomas !
Now I only want to analyse the arm muscles,so can I simulate the ground force in some way? .Because the demand for precision is not high.
thank you for the help!
han

[Thomas Uchida]

The best modeling approach depends on your research question, the motion you are simulating, the data you have, etc. Without more information, it is difficult to make any concrete recommendations. Based on the information you have provided, I will make a guess that you're simulating reaching and your subjects are either seated or standing still. I also don't know what model you are using. If only the arms are moving, you could consider using an upper-limb model (e.g., https://simtk.org/projects/upexdyn) and welding the model's torso to ground.