Parameter definition query

[Riva Karia]

I wanted to understand how different parameters are defined in the OpenCap analysis and model building. Specifically, I would like to know the reference segments used for defining these parameters. Could you provide detailed definitions and methodologies for all the parameters calculated in the kinematics section? Thank you so much for your help.

[Matt Petrucci]

Hi Riva,

The IK setup is here: https://github.com/stanfordnmbl/opencap ... tup_IK.xml

If you are wanting the model parameters, you should be able either view the .osim file directly or load it into OpenSim and inspect.

Hope this helps,

[Riva Karia]

Hi Matt,

Thank you so much for your response. I was wondering if you could give me an insight into how are the kinematics calculated in opencap. It would be very useful.

Best Regards,
Riva Karia

[Matt Petrucci]

Hi Riva,

Kinematics are computed using the OpenSim API with the setup file I provided. You can find more details about what goes into it here: https://opensimconfluence.atlassian.net ... e+Dynamics

Hope this helps,

[Riva Karia]

Hi Matt,

Thank you so much for your help.

Best Regards,
Riva Karia

[KA PUI CHE]

Could you find the definition of the parameters? I still have not found out...

[Antoine Falisse]

This is all based on OpenSim - the segment parameters (eg, mass and intertia) are described in the .osim file (ie, model file).

Take a look at the OpenSim documentation: https://opensimconfluence.atlassian.net ... m/overview
or please ask the question on the OpenSim forum: indexPhpbb.php?f=91

best,
Antoine