We did a muscle analysis to have an assessment of the muscular working range of the muscles in our model in specific trials. Looking at the results of the normalized fiber length it is very strange that for some muscles in short time periods the normalized fiberlength drops down to zero. Our first a...

Hi, I´m working on an obese subject. I managed to get RRA residuals within the "good" range of the recommended boundaries (Peak_max_force: <8N; Peak_max_Moment: <45 Nm). But when I use the coordinate file and the model (both from RRA) in CMC, the Residual_Mz is drifting from -24 Nm at the beginning ...

Hi James, thanks for the reply. I also unchecked the 'preserve mass' option before scaling. But after the scaling step the sum of the masses of all segments far exceeds the total mass in the scaling setup file. Indeed the subject is obese, but I don´t understand the distribution of the masses for th...

Hello, I´m using opensim 3.1. In the scaling step, mass properties of the 'upscaled' segments are not calculated correctly. So e.g. calcaneus in my model is scaled with factor 1.119, but mass of this segment changes from 1.25 to 3.24 kg. When I use version 3.01 with the same model and setupfile ever...