Ayman, I'm having some trouble with the visualizer and a weldconstraint. I set up the constraint in C++ code and loaded the model with the constraint in place. I confirmed that the constraint is in effect by opening the .osim file. The model loads to a specified position, but the coordinates slider ...

Ayman, I plan on following the C++ code example given on the documentation website below to create my optimization: http://simtk-confluence.stanford.edu:8080/display/OpenSim/Creating+an+Optimization Would this be significantly easier to perform this optimization in Matlab? I'm currently trying to le...

I'd like to optimize (maximize) force pushing against a constraint. My thought was to create a PointConstraint at the endpoint, and link it to ground so it does not move. I was thinking of using the reaction force of the PointConstraint on the limb as my objective function, but I haven't found much ...

I am just starting to use CMC on the Holzbaur upper limb model and I've noticed that PECM1 is extremely noisy. I get very large (>1000 N) "bumps" in my simulation. PECM1 will have very little muscle force, jump up to 1200N or so, then immediately return. Has anyone else encountered this before?

I'm trying to simulate force generation using the Holzbaur upper limb model. To start off with, I want to simulate isometric force generation at the level of the wrist. The wrist is locked, so that the force being applied to the wrist acts to flex and extend the elbow and shoulder. So I have locked ...