Glad it worked!
-james

Hi Alex,
In short, yes. OpenSIm will only calculate activations between 0-1. So if you input experimentally collected excitations that are greater than 1, the optimisers treat it as the upper bound (1).

Cheerss,
-james

Leo, You are able to integrate the source code of OpenSIm into your own applications. You will want to go over the developers guide and pages found at the links below; developers guide http://simtk-confluence.stanford.edu:8080/display/OpenSim/Developer%27s+Guide developers pages http://simtk-conflue...

Hi Brian,
You could use the class 'bodykinematics' and its subclass 'setRecordCenterOfMass'. The Doxygen documentation can be found here; https://simtk.org/api_docs/opensim/api_ ... atics.html

Let us know if that helps,
-james

Hi Bel, You do have acouple options here. As StaticOP gives you muscle forces and velocities you could calculate manually. Otherwise you can use the analysis tool. The instantaneous actuator states (force and velocity) are read and analysed (Power in watts). You would have to take your staticOp resu...

Joe and Bel, thanks for spotting that Bel! The xml tags can either give an absolute path (C:\Users\...\subject01_walk1_Kinematics.sto) or a relative path (subject01_walk1_Kinematics.sto). The relative path assumes the file is in the same directory as the setup.xml. We will change the package to repr...

Hi Giulia, The calculation and application of functional axes and joint centers would be done outside of the OpenSim package. Matlab tends to be used for the most part. There are a number of methods and implementations of this. However, the end goal would be to have the location of the functional jo...

Hi Emiliano,

You can measure and report muscle power by adding probes to the model. The description can be found here "http://simtk-confluence.stanford.edu:80 ... Sim/Probes".

Let us know how it goes,
-james

Hi Joe,

Are you using 3.1? I replicated the error but it may be because the example was built for version 2.4. Some significant changes have been made since then.

Please let me know,
-james

Hi Maida, Im assuming you are talking about the simtk project "musculoskeletal Model of the Lumbar Spine" ? That project has some example motion files that are downloadable. There isnt a markerset.xml associated with the project so you may have to generate and attach your own custom markerset. cheer...