Thank you for the response.

I am using 3.2, not sure about 32/64 bits (my OS is 64 which is what I normally install).

Regards,
Ran

Hi all,

Could anybody please explain what 'tendon_slack_length' (in muscle settings) is? Is it the length of the muscle+tendon *together* at rest (in meters)?

pennation_angle_at_optimal is the PA in radians, correct?

Regards,
Ran

Working now. Thank you so much!

Hi all, I am very new to OpenSim and currently trying to play with the models provided with the download (e.g. gait2354 and gait2359), and to apply what I have learnt from the tutorials. Every time I am trying to run static optimisation OpenSim crushes. After a few trials I am quite sure that the pr...

Dear all,

I am trying to use the static optimization feature. The GUI crushes every time I try it, while the cmd returns an error message saying: "On entry to DLASD4 paramater number -1 had an illegal value". Could anybody please advise on what I should do?

Regards,
Ran

Hi all, Thanks for all the help you've given me so far. I have an openSim model with markers placed on one leg. Ist it possible to just mirror them across the XZ plane to the other leg, or do I have to place them one by one again? I am not interested in saving time (15 min or so), but more in symmet...

Thanks I will try that.

Hi all, I am trying to run this amazing c3d extraction toolbox (https://simtk.org/home/c3dtoolbox/) on c3d files I found on the internet (http://www.c-motion.com/download/examples/OFM_C3D_Sample.zip) just to try it and practice using OpenSim until I have my own data. I then have an error message (TO...

Hello, I am very new to OpenSim so my question is quite ignorant. I have an OpenSim musculoskeletal model of the whole leg (previous research conducted in my group). I also have Vicon data acquired for the lower leg (emphasis on foot/ankle) only. I wish to modify the OpenSim model I have so to remov...