Figure 3

Mean (SD) values across targets for total endpoint (root mean square, RMS) (A), vertical (B) and sagittal directional errors (C), endpoint velocities (D) and elbow extension ranges (E) for the three groups: healthy, stroke-mild and stroke-moderate-to-severe viewing the VE through the head mounted display (light blue squares) and screen projection system (orange circles). Asterisks indicate significance. * p < 0.01, ** p < 0.005