| Detailed description |
|
|
I need help with the Associate Motion Data resource. If it is not my mistake, it may be a bug. I'm trying to view an external force. The simulated exercise is an elastic band shoulder abduction, one sided (right). The elastic band points towards the subject's feet, and it is held in the subject's right hand. I'm using a scaled Upper Extremity Dynamic Model (The number and choice of muscles impact the results of muscle synergy analyses. Steele KM, Tresch MC, Perreault EJ. Front Comput Neurosci. 2013 Aug 8;7:105.)
I'm using the following setup for the external loads xml file (only one force):
Applied to: hand_right;
(v) Applies Force;
(v) Point Force;
Force columns (from mot file): elastic band force expressed in global coordinate system (ground);
Point columns (from mot file): point located at the hand_right local coordinate system;
(v) Applies Torque: all torques are zero.
Force expressed in: ground (global)
Point expressed in: hand_right (local)
The problem is that when associating motion data for external force visualization, the force vector is always represented in the segment local coordinate system ("Point expressed in" checkbox), regardless of the body selected at "Force expressed in" checkbox.
I'm sending the simulation files, they are:
AMLABTB.osim: model;
AMLABTB_filt.trc: kinematic trial;
AMLABTB3.mot: elastic band point of application and force;
forca_faixa_elastica.xml: setup for the external load;
IK setup.xml: inverse kinematics setup;
ikAMLABTB.mot: inverse kinematics output file;
markers.xml: markers file;
scale setup.xml: setup for scaling.
I would be very grateful if someone could help me. |
|
