Figure 3.

Summary of clinical and robotic outcome measures as a function of time across all subjects. a) The primary outcome measure of the study, the Box and Block Test. b) The principle component score of all clinical outcome measures over the duration of the study. c) The principle component scores for all maximum coordinated movement strength (CMS) measurements taken with the robot. d) The results for the robotic reaching task. Error bars represent standard error of the mean. The empty space at week 5 indicates the 1-week break. Assessments 1, 2, 3 and 4 correspond to assessments taken at baseline, after the first 4 weeks of training, after completion of 8 weeks of training, and at a 3-month follow-up, respectively.