Fig. 11

Knee kinematics symmetry for healthy subjects. Rows A and B represent the knee Range of Motion and the phase at maximum flexion for the knee. Columns 1–3 represent the result for each subject; markers indicate the median value and whiskers the 10–90 percentiles. Column 4 represents the symmetry index for each subject under each experimental condition; notice that symmetry indexes closer to 0 mean a higher symmetry between limbs. Across the figure, colors represent the same healthy subject (HS) (HS1 in green, HS2 in purple and HS3 in orange), the brightness represents the experimental condition (from darkest to lightest: No-Exo, Free, Echo and Pattern correspondingly) and the shape of the marker represents the assessed limb (circle for the assisted limb and triangle for the unassisted leg). Markers (*) show significant differences between experimental conditions within a limb of a subject