Hello everyone,
I am learning to perform gait analysis with opensim. But the result of JointReaction is very strange, the result of JointReaction(figure 1) is very large, but I can't find the reason. Can someone help me?
thanks,
hongjie
Results of JointReaction
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hongjie hou
- Posts: 21
- Joined: Sun Sep 09, 2018 9:01 am
Results of JointReaction
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Dimitar Stanev
- Posts: 1096
- Joined: Fri Jan 31, 2014 5:14 am
Re: Results of JointReaction
There are many possibilities:
1. Make sure that the kinematic input is in degrees or radians by inspecting the .mot files.
2. Make sure that you apply the external forces correctly. You can verify this by performing inverse dynamics and observing the resulting moments.
3. Make sure to apply muscle forces that you calculated from static optimization for the same kinematics and externally applied forces.
A nice tutorial:
https://www.youtube.com/watch?v=ly4rhOOifO0
1. Make sure that the kinematic input is in degrees or radians by inspecting the .mot files.
2. Make sure that you apply the external forces correctly. You can verify this by performing inverse dynamics and observing the resulting moments.
3. Make sure to apply muscle forces that you calculated from static optimization for the same kinematics and externally applied forces.
A nice tutorial:
https://www.youtube.com/watch?v=ly4rhOOifO0