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Three-dimensional model of the lower limb. (a) Bony geometry included models of the pelvis, femur, patella, tibia, fibula, talus, calcaneus, metatarsals, and phalanges. Muscle–tendon geometry used line segment paths constrained to origin and insertion points, wrapping surfaces (e.g., cylinder in b) and via points (e.g., highlighted points in c).
