Figure 1. Segment anatomical coordinate system included in the model. A, Static trial marker positioning. B, Anatomical landmarks and technical markers. The anatomical landmarks are represented by AA = acromial angle; AI = inferior angle of the scapula; CL = calcaneus; GH = glenohumeral joint center; HP = hip joint center; ASISR and ASISL = right and left anterior superior iliac spine; PSISR and PSISL = right and left posterior superior iliac spine; MEF and LEF = medial and lateral femoral epicondyle; MEH and LEH = medial and lateral humeral epicondyle; H1, H2, H5 = first, second, and fifth metatarsal head; HF = head of fibula; MM and LM = medial and lateral tibial malleolus; RS and US = radius and ulna styloid process; TS = trigonum spinae of the scapula; TT = tibial tuberosity. The axes of the coordinate systems are represented by the letters i, j, and k.
