Does anybody have a setup that gives the correct solution to the individual muscle contribution to the acceleration of the center of mass?
Mine (attached) doesn't seem to be correct. Because they don't add up to the GRF in a particular direction.

What constraints do you guys use?

Has anybody ever used opensim 4.1 IAA to calculate the muscle contribution to the CoM in walking? Do the results match the ones from Tim Dorn's plugin? Dorn's plugin has used another foot contact model. He has used a time dependent model as a spring where the stiffness of the spring changes by time....

Hi, I am having a similar problem where IAA gives me the following error: "Performing Induced Accelerations Analysis time = 0.41 External force expressedInBody ground not found. Exception: ArrayPtrs.get: Array index out of bounds". I am sharing my setup file here. Please let me know if there is some...