To date, most studies have used only clinical measures to evaluate functional change (e.g., Jang et al. 2003) without considering how movement is performed. This study will focus on the ability to distinguish between whether functional improvement results from an increase in compensation or from true motor recovery. This can only be done by correlating functional improvement (clinical measures) with changes in arm motor patterns through detailed movement analysis (kinematics). Since there are a large number of possible kinematic indicators of improvement, the investigators need to identify which measures are most indicative of change. This is a first step in the determination of clinically meaningful outcome measures to be used in randomized control trials of the effectiveness of interventions. Clinical salience is essential to translate knowledge from research studies to evidence-based practice (van Peppen et al. 2007).