Fig. 6

a Relationship between changes in metabolic cost (ΔCOT) and changes in daily step count. Data in the second quadrant (highlighted in green) indicate lower metabolic cost and greater step count with the powered prosthesis. b Relationships between changes in the PEQ ambulation sub-scale (left) and the SF-36 physical functioning sub-scale scores (right) and changes in daily step count.c Relationships between changes in the PEQ social burden sub-scale (left) and the SF-36 social functioning sub-scale scores (right) and changes in daily step count away from home. Data in the first quadrant (highlighted in green) indicate greater scores and greater step count with the powered prosthesis