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Lateral aspect coxofemoral excursion fields showing the discrepancy between in vivo locomotion (dark grey) and possible mobility of the hip joint conjoined only by ligaments (light grey). Speed of specimen 1: 0.25 m s−1. Speed of specimen 2: 0.53 m s−1. The hip joint is located in the origin of coordinates (see inset). The excursion fields are derived by mapping the displacement of the distal femur (white point in inset) relative to the hip joint. LO, lift off; TD, touch down.
