Dear users / admin,
I am trying to understand how the wrapping surfaces work in the Thoracoscapular Shoulder Model. When I plot the muscle-tendon length of the Infraspinatus inferior against the axial rotation or the plane of elevation of the arm, the graph is not smooth but contains some spikes.When I move the slider in the GUI, the muscle follows a logical path from start to end, around the wrapping surface. At one point however it jumps to the other side of the wrapping surface, ignoring the presence of the humerus, and when I increased the plane of elevation angle with another 10 degrees, the muscle almost got itself into a knot.
I have attached a pdf file with a picture of the graph and the GUI (displaying the infraspinatus muscle at different values for the plane of elevation).
Any comments on why this happens and what can be done to resolve this (for I assume this is not supposed to happen this way) will be much appreciated!
Kind regards,
Tom
Wrapping surface
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Tom Driessen
- Posts: 5
- Joined: Mon Mar 16, 2020 7:45 am
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Dimitar Stanev
- Posts: 1096
- Joined: Fri Jan 31, 2014 5:14 am
Re: Wrapping surface
Hi Tom,
This might be an issue with the v4.0 visualization. I recall that there was an issue with the visualization in some post. Can you try to reproduce the same behavior with v4.1 and also v3.3? If you get the same behavior, then probably the wrapping of this muscle must be improved.
Dimitar
This might be an issue with the v4.0 visualization. I recall that there was an issue with the visualization in some post. Can you try to reproduce the same behavior with v4.1 and also v3.3? If you get the same behavior, then probably the wrapping of this muscle must be improved.
Dimitar