Fig. 3

Test–retest reliability expressed as Intra-class correlation (ICC) calculated for the number of trials included in the average value from each of four occasions (n = 20) in a subgroup of five persons with stroke. The horizontal lines represent poor (0.5, red), good (0.75, blue) and excellent test–retest reliability (0.90, green), respectively. MT movement time, NMU number of movement units, vel velocity, ang angular, abd abduction, flex flexion, ext extension, coord coordination, disp displacement, reps repetitions