I ran a 0.5-second simulation and then used the Analyze Tool to run a MuscleAnalysis. The passive forces are large. Dear Dr. Uchida, We apologise for the inconvenient. We were using in the wrong way the Plot tool offered by OpenSim. So, it seems the passive forces shown by Giuseppe in his first thr...

I loaded the model you provided in your first post but received "Object type Millard12EqMuscleWithAfferents not recognized" errors so I was unable to reproduce the issue to investigate. However, I loaded the arm26 model that accompanies the 4.0 installation and confirmed that no active muscle force...

Dear all, We want to use a simplified version of the "Upper Limb Dynamic Model", where only 6 Millard's muscles are considered (Pectoral Major, Deltoid, Brachialis, Bicpes short, Triceps Long, Triceps Lateral). We are interested in elbow flexion/extension and shoulder horizontal adduction/abduction ...

Dear all, I'm using the model arm26.osim and I want to plot the passive fiber force versus the r_elbow_flex. I was able to plot the function by using "Analyze Tool" available in the OpenSim GUI: 1)By Loading a motion file where time varies between 0 sec and 2 sec, r_shoulder_el is always 0 and r_elb...

I think the answer is "to create a plugin"

Dear James, thank you for your response. Unfortunately, my question was not clear. My problem is the following: I developed a new Muscle Model by extending the standard Millard Model and I want to use it in one of the musculoskeletal model available on simtk. If I want to import an osim model in C++...

Dear all, We are interested in creating a new muscle model and using it in some of upper-arm musculoskeletal models available on simtk. In particular, we have downloaded the Muscle class available on https://simtk.org/projects/afferents, which extends the default Millard model, and we want to use th...

Dear all, these are my first step in the fields of software tool for musculoskeletal modeling. I need to use them for modeling and simulating an upper limb and its "control stage" in an handwriting generation task. I read an article in whitch the author wrote: OpenSim shares many of the features and...