FAQs
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The table below displays the Upper Body Segment angles from Plug-in Gait.
All Upper Body angles are calculate in rotation order YXZ.
As Euler angles are calculated, each rotation causes the axis for the subsequent rotation to be shifted. X’ indicates an axis which has been acted upon and shifted by one previous rotation, X’’ indicates a rotation axis which has been acted upon and shifted by two previous rotations.
Angles | Positive Rotation | Axis | Direction | Angles | Positive Rotation | Axis | Direction | ||
LHeadAngles | 1 | Backward Tilt | Prg.Fm. Y | Clockwise | RHeadAngles | 1 | Backward Tilt | Prg.Fm. Y | Clockwise |
2 | Right Tilt | Prg.Fm. X’ | Anti-clockwise | 2 | Left Tilt | Prg.Fm. X’ | Clockwise | ||
3 | Right Rotation | Prg.Fm. Z’’ | Clockwise | 3 | Left Rotation | Prg.Fm. Z’’ | Anti-clockwise | ||
LThoraxAngles | 1 | Backward Tilt | Prg.Fm. Y | Clockwise | RThoraxAngles | 1 | Backward Tilt | Prg.Fm. Y | Clockwise |
2 | Right Tilt | Prg.Fm. X’ | Anti-clockwise | 2 | Left Tilt | Prg.Fm. X’ | Clockwise | ||
3 | Right Rotation | Prg.Fm. Z’’ | Clockwise | 3 | Left Rotation | Prg.Fm. Z’’ | Anti-clockwise | ||
LNeckAngles | 1 | Forward Tilt | Thorax Y | Clockwise | RNeckAngles | 1 | Forward Tilt | Thorax Y | Clockwise |
2 | Left Tilt | Thorax X’ | Clockwise | 2 | Right Tilt | Thorax X’ | Anti-clockwise | ||
3 | Left Rotation | Thorax Z’’ | Clockwise | 3 | Right Rotation | Thorax Z’’ | Anti-clockwise | ||
LSpineAngles | 1 | Forward Thorax Tilt | Pelvis Y | Anti-clockwise | RSpineAngles | 1 | Forward Thorax Tilt | Pelvis Y | Anti-clockwise |
2 | Left Thorax Tilt | Pelvis X’ | Clockwise | 2 | Right Thorax Tilt | Pelvis X’ | Anti-clockwise | ||
3 | Left Thorax Rotation | Pelvis Z’’ | Anti-clockwise | 3 | Right Thorax Rotation | Pelvis Z’’ | Clockwise | ||
LShoulderAngles | 1 | Flexion | Thorax Y | Anti-clockwise | RShoulderAngles | 1 | Flexion | Thorax Y | Anti-clockwise |
2 | Abduction | Thorax X’ | Anti-clockwise | 2 | Abduction | Thorax X’ | Clockwise | ||
3 | Internal Rotation | Thorax Z’’ | Anti-clockwise | 3 | Internal Rotation | Thorax Z’’ | Clockwise | ||
LElbowAngles | 1 | Flexion | Humeral Y | Anti-clockwise | RElbowAngles | 1 | Flexion | Humeral Y | Clockwise |
2 | – | Humeral X’ | – | 2 | – | Humeral X’ | – | ||
3 | – | Humeral Z’’ | – | 3 | – | Humeral Z’’ | – | ||
LWristAngles | 1 | Ulnar Deviation | Radius X | Clockwise | RWristAngles | 1 | Ulnar Deviation | Radius X | Anti-clockwise |
2 | Extension | Radius Y’ | Clockwise | 2 | Extension | Radius Y’ | Clockwise | ||
3 | Internal Rotation | Radius Z’’ | Clockwise | 3 | Internal Rotation | Radius Z’’ | Anti-clockwise |