Hi, everyone I am interested to create the ligament in the OpenSim and one of the parameters of the ligament is the Resting length of the ligament. What is the definition of the resting length of the ligament? Is that the zero-load length of ligament or the reference length of ligament ? Thanks for ...

Hi, Ayman Thanks for the reply. so if I understand right, since I put the ligamentplugin file into the the path of the folder named "plugins", and following the form as below: <Ligament name="pmPCL_r"> <isDisabled> false </isDisabled> <GeometryPath name=""> <PathPointSet name=""> <objects> <PathPoin...

Hi, everyone I have a question about how to use the ligamentplugin in the OpenSim. I have already download the plugin from http://wiki.simtk.org/opensim/SamplePlugins and decompression of the file to the path of the folder named "plugins". Is it all the things I should do before I start to create my...

Thank you very much for the explaination which helps me a lot.

<t>Hello, everyone<br/> I was confused with the function of JointReaction Analysis tool in OpenSim 2.2.<br/> when I use RRA setting and results files as input for JointReaction Tool, it seems to give me the results of Joint reaction force.<br/> when I use CMC setting and results files as input for J...

<t>Hi,all<br/> I am confused about the unit of files from CMC.<br/> such as the CMC results from 2354.<br/> what is the unit for:<br/> the file "subject01_walk1_Kinematics_u"<br/> the file "subject01_walk1_Actuation_speed"<br/> the file "subject01_walk1_Kinematics_dudt"<br/> Thank you for any help!<...

<t>I ran the CMC for my gait simulation. I follow all the instruction,but it always have error like following:<br/> rdCMC.computeControls: t = 1.23<br/> SimTK Exception thrown at InteriorPointOptimizer.cpp:249:<br/> Optimizer failed: Ipopt: Not enough degrees of freedom (status -10)<br/> OPTIMIZATIO...

when I read the handbook of Opensim, chapter 17 RRA,
I understood RRA contained RRA1 and RRA2, Does it mean when we do the RRA, we should do it twice? one for RRA1 and one for RRA2? If that is right, why the example 2354 and 2393 only have RRA files, not RRA1 and RRA2?
Thank you

<t>Thank you.I find something you suggest us before doing the RRA and CMC.<br/> 2. Check your ground reaction force, does it align up with the correct time frame (you can read the mot file into matlab).<br/> Do you have some materials that can tell me how to check GRF with matlab? Thank you very muc...

<t>Hi,Habib<br/> First,thanks for your help.<br/> I should explain my situation clearly.I try to test a gait simulation like the example 2354. the only different is my model is go forward but 2354 seems walking in a place.<br/> In fact, I check the ID and compared with example 2354 file. the scale o...