Hi all,

Besides the joint moments output in inverse dynamics I would also like to look at the body forces at the joints, but when I perform the simulation the outputs in the bodyforces file are all zero in FX,FY,FZ. Is there anyone who had the same problem?

Really appreciate any help.

Dear all, I am having trouble associating my force data to my motion. I have made a .mot file via matlab with my force data and it does run onto my model when doing inversde dynamics, but I cannot visualise it (with the green arrows). Is there any way I can solve this problem to see if my CoPs are c...

Dear OpenSim users, I am doing a static optimization of my sit to stand data and I am using the full body model by Rajagopal. For many of my participants the static optimization fails when the hip if flexed more than 80 degrees and when ground reaction force increases on the foot, but not all of the...

Hi all, I am using Matlab to perform inverse dynamics in OpenSim. I would like to add the body forces acting at the joints by using the _outputBodyForcesAtJointsFileName command, but it doesn't work. id= InverseDynamicsTool(ID_setup); id.setOutputGenForceFileName(strcat(trial,'_ID.sto')); id.setOutp...

Did you get this model working in OpenSim4?

Thank you, I forgot about the option of applying the force to a body. One more question, is it possible if I have just one force column and not in the x,y and z direction?

Why are you not sure if this will give me good results? because of my assumptions?

Thank you

Hi all, I have a question regarding the application of external loads. I have force data that only consists of the normal force without a direction. The CoP is unknown, but I want to assume that the force is applied perpendicular to the CoM of the hand. I want to make a .mot file to be able to make ...

Thank you for your help! It works now without using setModel and the xml setup file.

Dear OpenSim users, I am running the static optimization through matlab. I encounter troubles loading the force set file into the analyze tool. I am using the following code and after running the force setfile is not included in the xml setup file of the analyze tool. Is there anyone that knows what...

Thank you! now its working