Calibration procedure and biomechanical validation of an universal six degree-of-freedom robotic system for hip joint testing

Table 5 Results of the trajectory curve coordinates deviation recorded for flexion–extension motion

	dX	dY	dZ	Euclidean distance
Average	3.44	− 0.36	0.17	3.59
Max	3.66	0.24	1.50	3.79
Min	3.26	− 0.59	− 1.57	3.41

ISSN: 1749-799X