Hi !
Thank you, i’ve seen my explanation are quite better now…
> 1. If you disable the torn muscle in the model, then you can see how
> the loads will be redistributed to the other muscles presuming an
> unchanged movement, and the system will tell you either by higher
> muscle activities or by failure to fulfil equilibrium how serious the
> lack of the torn muscle is. You can subsequently impose a different
> humeral head position on the model and investigate if this will
> reduce the load on the altered system.
>
> 2. With the new version coming out soon you can set up a posture
> optimization problem so that the system automatically determined the
> position of the humerus that minimized the load on the altered system.
Your ideas seem to fit what i’m looking for.
> Do you mean how much abduction could the model do in the absence of
> a rotator cuff muscle?
Yes, that was what i meant.
> If you are
> interested, perhaps we can establish a scientific cooperation with
> the AnyBody Research Project for this matter. Let us know if you are
> interested.
That could be a great thing if i’m not able to make my model alone.
I keep it in mind, thank you.
> Are you aiming to model this
> dislocation or are you aiming to model a smaller movement within the
> normal limits of the GH joint?
The aim is to have a small movement but if forces have to dislocate,
let’s see it. It’s a great option.
For the model i wish :
> The best way is to keep the spine, but you may use a model with no
> muscles on the spine such as
> “BRep/Aalborg/Bodymodels/SpineNoMusclesRightArm/BodyModel.any”
Yes, i’ve tried it but there’s a lot of stuff i really don’t need. As
you know, Anybody is quite demandeous when used with muscles and the
less we have, the more we have a quick model.
Let me explain : i need the arm, scapula and clavicula. Muscles needed
are those making relation between arm and bones cited (supraspinatus,
infraspinatus, subscapularis, teres minor, teres major and deltoidus).
Muscles playing with torso or spine are really not use for the moment.
One last thing , the scapula has to be fixed (not fixed with an
artificial node but fixed not to move).
So i would like to try with only the Arm3D to have a “light” model.
I think this comes to complete a little…
Thank you !
Yoann