Range of Motion for each Joint

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1

Hi,
I face some difficulties in anybody model definitions, could you help me on that.

Example:
[SIZE=2]//Range of motion for each joint and direction, numbers in degrees
[/SIZE]//when this angle is reached the strength is downscaled to 10% of original value!
AnyFolder JointRangeOfMotionCervical={
AnyVar Extension=45/8 ; //remember this is for each joint we have heigt of them in serie
AnyVar Flexion= 60/8;
AnyVar LateralFlexion=40/8;
AnyVar AxialRotation= 45/8;
};

AnyFolder T1C7Jnt={
AnyFolder Extension={
AnyKinMeasure &DOF = …InterfaceFolder.T1C7JntMus;
AnyFolder dof0={
AnyVector Strength={…JointStrengthCervical.Extension,…JointStrengthCervical.Flexion};
AnyVector ROM=(pi/180){…JointRangeOfMotionCervical.Extension,…JointRangeOfMotionCervical.Flexion};
AnyInt dof= 2;
#include “…/ToolBox/Diagnostics/DiagnosticMuscle3.any”
};
};
AnyFolder LateralBend ={
AnyKinMeasure &DOF = …InterfaceFolder.T1C7JntMus;
AnyFolder dof0={
AnyVector Strength={…JointStrengthCervical.LateralFlexion,…JointStrengthCervical.LateralFlexion};
AnyVector ROM=(pi/180){…JointRangeOfMotionCervical.LateralFlexion,…JointRangeOfMotionCervical.LateralFlexion};
AnyInt dof= 0;
#include “…/ToolBox/Diagnostics/DiagnosticMuscle3.any”
};
};
AnyFolder AxialRotation={
AnyKinMeasure &DOF = …InterfaceFolder.T1C7JntMus;
AnyFolder dof1={
AnyVector Strength={…JointStrengthCervical.AxialRotation,…JointStrengthCervical.AxialRotation};
AnyVector ROM=(pi/180)*{…JointRangeOfMotionCervical.AxialRotation,…JointRangeOfMotionCervical.AxialRotation};
AnyInt dof= 1;
#include[SIZE=2] “…/ToolBox/Diagnostics/DiagnosticMuscle3.any”
};

Refer to the above case,
How to find the range of motion for the T1C7 joint? I only want the rotational ROM.
Thanks.

Best Regards,
Lee

[/SIZE]

2

Hi Lee

In the script you have listed each of the folders
extension, lateralbend and rotation has a ROM vector this gives you the numbers you are requesting i believe.

If this is not what you need please explain in more detail.

Best regards
Søren

3

Hi Soren,

Thanks for the reply. Since i am dealing only with the joint rotation.
So in that case, is that correct to say that my ROM in T1C7 joint is
(pi/180)*45/8 = 5.625 deg? Which means that my T1C7 joint can rotate about each x,y,z axis in the range of -5.625 to 5.625 deg…??

And also how to find the ROM for the palm and toe joint because i cant find the AnyFolder for palm and toe joint in AnyScript?

Thanks and appreciate for the help.

Best Regards,
Lee

4

Hi Lee,

As Søren said the RoM is different for each direction. Look for the different variables in the folder JointRangeOfMotionCervical. Extension and flexion are around z axis, lateral flexion around x and axial rotation around y.

As for the wrist (palm) joint RoM, look in the file Arm/JointMuscle. The toe joint does not exist in the model as the foot is a single stiff segment.

Best regards, Sylvain.