DATA ANALYSIS Based on the primary outcome measure results of the pilot trial, the sample size of the study will be computed using the freeware G*Power 3.1.9.2, general statistical power analysis program. Comparisons of data between different sessions are performed with the Wilcoxon signed-rank test, considering the value of significance at 0.05. Linear regression and Pearson's correlation are used to evaluate the relationship between the UE-FMA improvement and 1) the age of patients. 2) the time from the stroke, and 3) the calculated kinematic quantities. The statistical analysis is performed using WinSTAT® for Microsoft® ver.2012.1.0.94.