Thanks Nicholas. I have done most of the analyses in the GUI, but have send a zip folder with the Matlab code, and the model + experimental data by email as it was too large to post here. I can also send the Rajagpoal model + experimental data, but as this is already provided with the OS installatio...

I have also just ran the same analysis using the Rajagopal model and experimental data provided with the OpenSim installation. There I also get values for the tibial acceleration that are very different from the literature and the pattern of the acceleration is also different. For example, the figur...

I really appreciate your continuous suggestions Nicholas. I have ran the inverse dynamics and it produces results consistent with what I obtained in OpenSim version 3.3 for the same participant, and also in line with the literature (although my ankle joint moment is a little higher [~3 Nm/kg for the...

Thanks for your suggestion Nicholas. When I don't specify any external loads and set compute_acceleration_without_forces to true Opensim crashes. If instead I remove the external loads and set compute_acceleration_without_forces to false, the tool runs, but again produces an output that seems implau...

Thank you both for your replies! I have tried changing the tolerance limit in the .xml file (<integrator_error_tolerance>1.0000000000000001e-5</integrator_error_tolerance>) but this did not solve the issue unfortunately. I also tried the adjustment regarding the assembly accuracy in Matlab (<assembl...

Any of the OpenSim developers any idea about the cause of the crash or implausible acceleration values? I assume the implausible acceleration is because I am not ignoring the external load, but if this is the case it would be good to know how to prevent the tool from crashing if ignoring external lo...

Hi all, I am experimenting with attaching IMU's to the body and then using the IMUDataReporter within the analyze tool to obtain the linear accelerations of the IMU. To this purpose, I first attached IMU's to my model using the IMU placer with the example set-up file provided with the Rajagopal Open...

Another update: I found the error: I was simply checking the wrong model in Notepad. The model that produced the error was indeed missing some .vtp files. When added to the folder everything appears. Also for the original Rajagopal model everything was visible.

Update: I found why the pelvis is not showing up. The model I was using was searching for a pelvis vtp file with _Rajagopal as underscore added to the file name.

The model now appears to be correct, but I still get the error related to the tib_plat_.vtp

I have adjusted the geometry path to different folders, but the following error keeps showing regardless of where I set the path to: Visualizer couldn't open tib_plat.vtp because: SimTK Exception thrown at PolygonalMesh.cpp:411: Error detected by Simbody method PolygonalMesh::loadVtpFile(): Attempt ...