Thank you so much Thomas! I locked Py (vertical position) of pelvis, applied the external torque (like the one shown in the code I attached) and restart the FD simulation. This time the model didn't fall, but it started to do some weird movement and the simulation is very slow. Do you have any idea ...

Hi there, I tried to set the muscle excitation through Matlab, and read the knee angle from Matlab as well. I went through the OpenSim API documentation, and used "Muscle.setExcitation()" and "Joint.get_coordinates ('Joint Name')" respectively. However, none of these command works. The system just t...

Hi, I tried to apply external torque at knee through Matlab scripting, and below is my code. The Matlab code was ran successfully, but when I started the forward dynamics simulation in OpenSim, nothing happened except that the model just fell. I was wondering is it because some Matlab commands are m...

Hi there,
Is there any way that I can add a feedback controller in Simulink to the OpenSim model, so that I can precisely control the motion of each joint? Thank you very much!

Thank you so much! So does ground_force_p mean the position of the point to which we apply external load?

Hi, I looked up the ground reaction force file called "subject01_walk1_grf.mot" given by "Gait2354_Simbody" model. In that file, it has twelve different components of the ground reaction force: ground_force_vx, ground_force_vy, ground_force_vz; ground_force_px, ground_force_py, ground_force_pz; grou...