Hi nick Thanks for your answer. How are you modeling foot-ground contact? I used RollingOnSurface constraint to model foot-ground contact. I made use of another hamner's project to configure my own analysis. Here is my IAA setup https://i.ibb.co/GpCyMVM/pic3.png The results of IAA are pretty sensiti...

Hi everyone I've been trying to apply IAA to MOCO optimization results to get muscle contributions. Particulary, I used Ross Miller's Model (UMocoD) and results included at same project. I set up IAA on Opensim GUI using several setup files as guide example, however, the results for each muscle aren...

Hi Nick
I was reviewing and it would be helpful how to get dynmics information such as centripetal and centrifugal forces, gravity forces, mass matrix from Moco solution. I could use this data for making my own analysis.

Thank you again for you patience
Regards
David

Hi nick If you could provide more details on exactly what you're trying to do and where you're getting stuck with Moco tools, I can be more helpful. Ok NIck. I will try to do my best effort. In my research I want to found how stiffness of foot prosthetic influence on ampute gait. I modified musclesk...

Hi Nicolas. Sorry for not being clear. Particularly, I want to make a analysis just like picture below. https://i.ibb.co/KsK1sTg/Segment-Powe-Analysis.png This picture was obtained from paper titled "Altering prosthetic foot stiffness influences foot and muscle function during below-knee amputee wal...

Hi everyone
i have been working on transtibial amputee gait and I was able to run some MOCO simulations getting some good results. I would want make a segment power analysis but I dont know how. I have tried using IAA tool, however, I got weird results.
Than you for any help!
David

Hi,

Glad you got it to work!

Thanks Nicholas!

I think locked joints can create issues with the visualizer if the model can't meet the constraint (since locked joint are enforced as a constraint in the multibody system)

Is there any way to replace locked joints by model constraints?

Hi Nicholas. The format of these files is .stl. I had changed the format to .vtp or .obj but it didn't work. In the last days I find out that unlocking prosthetic ankle joint, the simbody visualizer was able to show prosthesis mesh geometries. Then, I modified osim model adding Coordinate limit forc...

Hi Nicholas.
Thank you for you answer.
The mesh geometries are located in working directory, more specifically in a folder named geometry, just like 2D walking example. What else can it be?

David

Hi everyone. I have been working on transtibial amputee gait using MOCO and Matlab. I modified 2D walking example model removing ankle joint and adding prosthesis model. I ran my matlab script, it worked well, but when I want to visualize given results, I can't see prosthesis mesh geometry despite t...