Support pattern (sequence of phases with different number of limbs on the ground) during intact (black horizontal bars) and prosthetic (blue horizontal bars) walking and representative positions of two animals in each support phase. Filled bars indicate stance and unfilled bars swing. LH, LF, RH and RF are left hindlimb, left forelimb, right (prosthetic) hindlimb and right forelimb, respectively. The top row of numbers between dashed vertical lines indicate the phase of gait; the second row, the number of limbs on the ground in a given phase. Dorsal cat views show the base of support area (light gray) relative to the paws on the ground and the center of mass.