In this example file the subject is walking in the posterior direction of the laboratory coordinate system (LAB). If the pelvis angle is defined as the pelvis with respect to the laboratory, the data are rotated 180 degrees from the desired angle (see Pelvis Angle wrt Lab in Example2.cmo file). To create a pelvis angle that makes intuitive sense (e.g. in the direction of walking), a virtual lab segment was created. The pelvis angle can then be defined with respect to the virtual lab (see Pelvis Angle wrt Virtual Lab in Example2.cmo file).

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For more information please view the Virtual Lab Tutorial.