IOR Gait Joint Angle

This tutorial is a continuation of the IOR Gait Full Body Tutorial. This tutorial goes through computing different joint angles specific to the IOR Gait model.

The Tho_Pel and Tho_Lab angles are described here, while the lower extremity joint angles were created based on the segment coordinate systems described here

1. Define the RTho_Pel_Angle:

1. Open the Compute Model Based dialog
2. Select JOINT_ANGLE from drop down list
   • Data Name: RTho_Pel_Angle
   • Segment: Thorax/Ab
   • Reference Segment: Pelvis
   • Cardan Sequence: Z-X-Y
3. Use Negative:
   • X: TRUE Y: FALSE Z: TRUE

2. Define LTho_Pel_Angle:

• When defining the left signal, use same definitions except set:
  • Use Negative
    • X: FALSE Y: TRUE Z: TRUE

3. Define the RTho_Lab_Angle:

1. Open the Compute Model Based dialog
2. Select JOINT_ANGLE from the drop down list
   • Data Name: RTho_Lab_Angle
   • Segment: RThorax/Ab
   • Reference Segment: VLab
   • Carden Sequence: Z-X-Y
3. Use Negative:
   • X: TRUE Y: FALSE Z: TRUE

4. Define LTho_Lab_Angle:

• When defining the left signal, use same definitions except set:
  • Use Negative:
    • X: FALSE Y: TRUE Z: TRUE

5. Define the RHip_Angle:

1. Open the Compute Model Based dialog
2. Select JOINT_ANGLE from drop down list
   • Date Name: RHip_Angle
   • Segment: Right Thigh
   • Reference Segment: Pelvis
   • Carden Sequence: Z-X-Y
3. Use Negative:
   1. X: FALSE Y: FALSE Z: FALSE

6. Define LHip_Angle:

• When defining the left signal, use same definitions except set:
  • Segment: Left Thigh
  • Use Negative:
    • X: TRUE Y: TRUE Z: FALSE

7. Define the RKnee_Angle:

1. Open the Compute Model Based dialog
2. Select JOINT_ANGLE from drop down list
   • Data Name: RKnee_Angle
   • Segment: Right Shank
   • Reference Segment: Right Thigh
   • Cardan Sequence: Z-X-Y
3. Use Negative:
   • X: FALSE Y: FALSE Z: TRUE

8. Define LKnee_Angle:

• When defining the left signal, use same definitions except set:
  • Segment: Left Shank
  • Reference Segment: Left Thigh
    • Use Negative:
      • X: TRUE Y: TRUE Z: TRUE

9. Define the RKnee_Angle:

1. Open the Compute Model Based dialog
2. Select JOINT_ANGLE from drop down list
   • Data Name: RAnkle_Angle
   • Segment: Right Virtual Foot
   • Reference Segment: Right Shank
   • Cardan Sequence: Z-X-Y
3. Use Negative:
   • X: FALSE Y: FALSE Z: FALSE

10. Define LAnkle_Angle:

• When defining the left signal, use the same definitions except set:
  • Segment: Left Virtual Foot
  • Reference Segment: Left Shank
  • Use Negative:
    • X: TRUE Y: TRUE Z: FALSE