I am still having trouble with shoulder joint angle sequence so have attached my model to see if you can help me out. I have removed all the muscles so there are just two bones - a scapula and a humerus. I have an anyinclude3 file which has in it kinematics determined from vicon data. These kinematics are in the angle sequence yzy. The shoulder joint is also defined in the same way. When I drive the model using the kinematics I get the following error:
WARNING(OBJ.MCH.KIN6) : E:/AnyBody_Monique/T…s/06.24/TwoBones.any : GHRot : Close to singular position : Orientation close to Gimbal Lock, i.e., first and third axis of rotation being parallel
Is there any way I can define the glenohumeral joint as it is in the Bergmann model i.e. yzy and then also drive with data that has the same angle sequence?
Thanks for the help