Hello both,

Thank you very much for your advice and help, much appreciated. I managed to fix the model, it turns out there was a modelling issue in the definition of the joints.

All the best,
Diana

Hi, the left limb is the first one to step on the force plate 1, and the right limb uses force plate 2. This is why I associated the right limb with identifiers 2 and the left limb with identifiers 1.

Hello both, Many thanks for your help. I have now used the matlab code OpenSim provided to export the .trc and .mot files (attached) from the .crd and they should be aligned with the OpenSim coordinate system. Previously I was exporting them from Vicon. I played back the IK. The skeleton tracks the ...

Many thanks for your reply.

I have attached the raw marker data for the trial.

Any insights would be much appreciated!

Hello! I have an issue with the inverse dynamics process using a lower limb model for gait. The ground reaction forces and inverse kinematics look alright. However, the inverse dynamics shows a very large peak in the ankle torque towards the end of stance, that should not occur. This artefact then a...