Fig. 2

Hand paths for 3 exemplar participants from each group using each device. The lines represent hand paths come from 80 trials of the VGR task with the Kinarm Robotic Exoskeleton (left column) and the Samsung Galaxy Tablet (right column). (A) Performance of a Young Control (YC) participant (24 years old, Right, M) in the Kinarm Robotic Exoskeleton (average Reaction Time = 0.26 s, average Initial Direction Error = 2.03°, Max Speed = 22 cm/s, Movement Time = 1.01 s). (B) Performance of the same YC participant in A, but with the VGR tablet task (Reaction Time = 0.28 s, Initial Direction Error = 2.67°, Max Speed = 20.40 cm/s, Movement Time = 0.68 s). (C) Performance of an Older Control (OC) participant (69 years old, Right, Female) in the Kinarm Robotic Exoskeleton (Reaction Time = 0.29 s, Initial Direction Error = 2.25°, Max Speed = 19.10 cm/s, Movement Time = 1.10 s). (D) Performance of the same OC participant in C, but with the VGR tablet task (Reaction Time = 0.29 s, Initial Direction Error = 2.15°, Max Speed = 25.20 cm/s, Movement Time = 0.48 s). (E) Performance of an Individual Post Stroke (IPS) participant (62 Years old, Right Hand Dominant, Male, Right hemisphere of stroke, FMA = 46) in the Kinarm Robotic Exoskeleton (Reaction Time = 0.65 s, Initial Direction Error = 6.62°, Max Speed = 13.36 cm/s, Movement Time = 2.52 s). (F) Performance of the same IPS participant in E, but with the VGR tablet task (Reaction Time = 0.30 s, Initial Direction Error = 7.10°, Max Speed = 8.33 cm/s, Movement Time = 1.79 s). Velocity profiles in the lower left corner of each axis represent hand speeds associated with reaches to the black target. The reported results in legend are from the custom VGR analysis