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visual3d:tutorials:modeling:ior_gait_joint_angles

IOR Gait Joint Angle

Overview

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.

Joint Angles

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


Joint Angle Definitions

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
visual3d/tutorials/modeling/ior_gait_joint_angles.txt · Last modified: 2024/11/28 15:11 by wikisysop