Hi Nat,

You can try increasing it untill you get the results and at the same time check the kinematics and ID , or RRA results. Have a look at them and see if they are smooth enough. Check your GRF as well if they are applied cottectly.
Hossein

<t>Hi All,<br/> <br/> Actually there is simple way to change your type of force plate and you can then use the toolkit easily.<br/> <br/> If you have access to Nexus (I think any version), You can simply open your c3d file and save or export it it as another c3d file. Now you have a c3d file that ha...

Hi Nate,

One possible issue is that your muscle are not strong enough.

Try to increase MIF (maximum Isometric force) of your muscle in .OSIM file.

It may help you run the the simulation
Hossein

<r>Hi Jong ,<br/> <br/> I think what you need to do is as follows:<br/> 1- Read your OSIM file using "Load_OSIM.m" in matlab . You can find this .m file in simtk website. <br/> <br/> <URL url="https://simtk.org/project/xml/downloads.xml?group_id=433#package_id851"><LINK_TEXT text="https://simtk.org/...

Hello again,

I may simplify my question as follows:

Can anyone tell me how I get GRF(both COP and Force directions) or Kinematic data of foot in hip local coordinate system at each frame?

Regards,
Hossein

<t>Hello everyone,<br/> <br/> I am trying to import GRF, Kinematic data to abaqus. I was wondering if joint coordinate systems in Opensim follows Grood and Suntay(1983) coordinate system. However, It seems all the data is relative to the coordinate system in the pelvis in opensim. <br/> <br/> In the...

<t>HI Ayman,<br/> <br/> How big this reserve can be? I figure out that in high impact loads(such as jumping <br/> <br/> and landing) I need very big reserves in which this reserve not muscles actually providing the <br/> <br/> torque from RRA(I am talking about CMC). <br/> <br/> <br/> CMC can not be...

<t>Di-An,<br/> <br/> They may look great value. But you should check if you reserve actuators are small or not.<br/> <br/> Tim has said that:<br/> <br/> "Check the reserves in _CMC_Actuation_force.sto file. If reserves are significant (>2N/2Nm) "<br/> <br/> then these actuators are acting to compens...

<t>Hi Di-An,<br/> <br/> Can you provide more information about the your height and type of landing? I mean if it was both legs or one leg.<br/> <br/> Please look at your quad forces as well. what are their values in terms of B.W? also look at your GRF if they have been applied correctly.<br/> <br/> ...

<t>Dear Ayman,<br/> <br/> I have checked the Joint reaction force both in GUI and xml BUt it seems the forces are too big. I also checked them with Tim in the past here and I used one of opensim examples so the results were big as well. I wonder if you would have any idea how to solve it.<br/> <br/>...