<t>Hi Sam,<br/> <br/> Sorry for replying to your topic that's over a year old but I took a closer look at the upper extremity model developed by Kate Holzbaur and did not find any mass properties. Looking through the original paper, the methods section doesn't mention anything about defining masses ...

<t>I recently noticed that the Upper Extremity Model available from the Neuromuscular Model Library doesn't seem have any mass or inertial properties. As this is making it difficult to do inverse dynamics analysis, I was wondering if the mass properties were available? <br/> <br/> I looked through t...

Hi,

Given that this seems to be a bug with OpenSim 1.8, one thing that works is to import the model with the previous version of OpenSim and save it. Then you should be able to open the saved model with the most recent version.

-Kaan