Hi, I am facing a similar problem. I have performed IK, RRA and CMC for a sprint start. When I use those results and run IAA, constraints forces with a RollingOnTheSurface model do not totally follow GRF. Indeed, there is a sudden drop to zero of components X and Z, and at that time also the Y-compo...

Hi James,

Thanks for your reply. Yes, we are using Kistler force plates.

I need to check if I can send you some C3D files (confidentiality and protection issues) and write you an email.

Best,

Laura

Hi all, I'm using osimC3D in MATLAB to read my C3D file and get TRC and MOT files. I would like to know how the COP is computed, since after reading C3DFileAdapter it is already included in the p label and I could not find which equations were used. A FP type 3 was used when collecting data. I also ...

Hello, I am using the model on https://simtk.org/projects/runningsim and I am checking what were the differences between IPOPT and CFSQP optimizers when performing RRA because I am getting a really big value for MZ after performing the RRA on a sprint start. My results in the first passage using IPO...