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. Author manuscript; available in PMC: 2008 Nov 6.
Published in final edited form as: J Biomech. 2007 Aug 17;40(16):3725–3731. doi: 10.1016/j.jbiomech.2007.06.024

FIGURE 1.

FIGURE 1

Overview of the musculoskeletal model used in this study (adapted from Carhart (Carhart, 2003)). Illustration of the segmental reference frames in the frontal and sagittal plane for the pelvis (A), thigh (B), shank (C) and foot (D) with the subject standing in the anatomical position. In the pelvic reference frame, the superior/inferior axis is in line with the trunk when in a standing posture. The anterior/posterior axis is perpendicular to the superior/inferior axis and in line with the progression of movement in the anterior direction. The medial/lateral axis is defined as the cross product of the other two axes.