<t>Ayman, <br/> I reported it as a bug but could only attach one file at a time. I sent it in two parts. I hope what I sent makes sense.<br/> It could be that I did something wrong in the column headers of the motion file or file with just the forces, but I do not know. <br/> Thank you, <br/> Amy</t>

<t>Ayman, <br/> The GUI had under the coordinates tab for leg39: <br/> pelvis_tilt, <br/> hip_angle_r, <br/> knee_angle_r, <br/> ankle_angle_r, <br/> subtalar_angle_r, <br/> mtp_angle_r.<br/> I made these my column headers in my .mot file. When I went to try the inverse dynamics analysis, it said "T...

<t>Francesco, <br/> Did you get your leg39 model to work? I am now trying a leg extension using leg39, and though it looks like I can attach a force to the talus, I cannot get inverse dynamics or static optimization to work. It looks like the problem may be that the joints listed in the user interfa...

<t>I was looking through the .osim file for gait2392, and noticed that the bones appear to have mass in the model, but the muscles do not. Is this correct? <br/> Is the mass of the muscle and adipose tissue accounted for in the mass of the bone in the model? <br/> Also I see in the .osim file under ...

<t>I am working on creating a dynamic leg press model, and am tyring to understand the effect of moving the point of force application from the heel to the toe, and eventually to other points on the foot. Right now the force on the heel files work just fine. <br/> <br/> I have created two markers on...

<t>To apply the force, I created a file with 19 columns (at least it was for me - based off of the gait2392), with columns for time, ground force x,y,z for right foot, position of force application x,y,z for right foot, and then the same data for the left foot. Then there were 6 columns for ground t...

<t>Francesco,<br/> <br/> I wish I were a more advanced user... I am sorry I do not know about ligament reactions or developing plugins. They sound complicated to me too. Now it's killing me that I cannot figure out how I did the point kinematics to track the piont on the heel - I will need to try it...

<t>I don't know if this is the only way but how I have learned how to apply a force to the heel of the foot (in my leg press simulation) is the following. The data I had was only angle data so I am not sure how much this would change if you have marker data. <br/> <br/> 1. Alter the .mot file to cre...

<t>I am also looking to find the meaning/definition of much of the XML code in the gait2392.osim file. I am particularly looking for <CoordinateSet> name =""> as well as <CustomJoint>, <WrapObjectSet>, and <TransformAxisSet>. I am not familiar with XML but am trying to understand how the joints are ...

<t>Ayman & Dan, <br/> <br/> After looking at chapter 21 as Ayman recommended, I am still unclear as to how I can apply a force (not a ground reaction force) to a certain joint or location. <br/> <br/> I have also looked at the analyze tool under the "actuators and external loads" tab. There, I d...