Hi Haruki, You can view motion data and GRFs simultaneously by loading the motion and GRF data then holding the Ctrl button and clicking on both the GRF.mot and the motion data, then right click and select "sync. motions". They should both be displayed then when the motion is played. All the best John

Hi Seyyed, All the geometries in OpenSim models are available in the directory specified under the "bodies>femur_r>display geometry" tree in the GUI. These can be in many formats such as .vtp but you can convert them to .stl file using (http://www.kitware.com/opensource/paraview.html). You can then ...

Sorry for the late reply Farzaneh, Have you weighted the marker's you're more confident in? If you're don't have much confidence in the foot markers, they should have a lower weighting As suggested by the tutorial videos, It may be useful to look at static photos of the subject with the markers on a...

Hi farzaneh, Can you describe the experimental marker set you are using? The markers should be in the same relative positions on the model as they were on the subject during collection of your motion data have you had a look at the videos on scaling? http://simtk-confluence.stanford.edu:8080/display...

Hi Ross, Thanks for the reply, i'm using the model distributed with the Static Optimization example which is Gait2392 and the motion is subject01_walk1_Kinematics.sto Seems to be all negative directions for all the hip muscles, the negative Y direction on the femur is proximal to distal in the model...

Hi all, This thread has been of great help so far. I'm trying to implement the method described above by Ton so i've added the translation DoFs to the hip in the model file and asked Opensim to return the moment arms for various muscles around the hip, I am getting unit vectors back but they all hav...

Hi Luca,

Thanks for your message, any luck with the update?

Best regards
John

Hi guys,

Anyone know if there's a compatible plugin for Opensim 3.0/3.2 yet?

Thanks
John