Joint reaction forces

Provide easy-to-use, extensible software for modeling, simulating, controlling, and analyzing the neuromusculoskeletal system.
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Giordano Valente
Posts: 13
Joined: Mon Dec 22, 2008 1:40 am

Joint reaction forces

Post by Giordano Valente » Mon Mar 30, 2009 8:15 am

This is an easy but fundamental question: is there a way in OpenSim to calculate the joint reaction forces? For example, for the hip joint (spherical), ID and RRA (Actuation_force.sto) results give the 3 net moments, and from CMC Actuation_force file you can see muscles forces values. What about the reaction forces at the joint?
Did anyone find a way to solve this problem?
Thanks.
Giordano
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Ayman Habib
Posts: 2242
Joined: Fri Apr 01, 2005 12:24 pm

RE: Joint reaction forces

Post by Ayman Habib » Mon Mar 30, 2009 4:11 pm

Hi Giordano,

We had an experimental joint-reaction computation but we haven't exposed it in version 1.8.1 because it was still undergoing some testing. Testing is now complete and the next release of OpenSim will have joint-reactions available.

Best regards,
-Ayman
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Giordano Valente
Posts: 13
Joined: Mon Dec 22, 2008 1:40 am

RE: Joint reaction forces

Post by Giordano Valente » Tue Mar 31, 2009 5:52 am

Is it possible to know when the new release will be available?
Thanks,
Giordano
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