The clients will receive tele-rehabilitation treatment via the Gertner Tele-Motion Rehabilitation system with remote online monitoring by the therapist. Treatment feedback is given in the form of Knowledge of results (game scores) and Knowledge of performance (feedback of compensatory movements made while using the upper extremity) to enhance motor learning. The software generates a report which includes the duration and type of exercises performed by the subject.

This questionnaire includes 10 items which provide a global view of subjective assessment of a system's usability. Each item was rated on a five-point scale from one (disagree totally) to five (agree totally). Five items are positive statements, such as "I think that I would like to use this system frequently" and "I thought the system was easy to use" and the other five items are negative, for example, "I found the system unnecessarily complex" and "I think that I would need the support of a technical person to be able to use this system." The item scores were calculated to give an overall score ranging from 10 to 100 points. The SUS has been shown by the authors to be a robust and reliable evaluation tool but its psychometric properties have not been fully investigated. (Brooke et al., 1995)

This is an 8-item questionnaire which queries the user's sense of presence, perceived difficulty of the task and any discomfort that users may have felt during the experience. The first six items assess the participant's (1) feeling of enjoyment, (2) sense of being in the environment, (3) success, (4) control, (5) perception of the environment as being realistic and (6) whether the feedback from the computer was understandable. The seventh item queries whether participants felt any discomfort during the experience. An eighth item queries their perceived difficulty while performing the task. Responses to the first seven items are rated on a scale of 1-5 where 1=not at all and 5 = very much. Responses to the eighth item is also rated on a 1-5 scale where 1= very easy and 5= very difficult. A total mean score for each participant will be calculated for the first six items.(Kizony et al., 2006)

The FMA assesses the motor impairment of the upper extremity after stroke. Each movement is graded on a 3-point scale, and the total score for the upper extremity ranges from 0-60 points where a higher score represents more active movements. An additional part assesses the coordination of the affected upper extremity and the score ranges between 0-6 where a higher score represents poorer coordination ability. This test is one of the most commonly used instruments in rehabilitation and its validity and reliability have been well established (Fugl-Meyer et al., 1975; Wood-Dauphinee, Williams, & Shapiro, 1990; Chae, Johnston, Kim, &Zorowitz, 1995).

Standard clinical goniometer will be used to measure changes in shoulder (abduction and flexion) and elbow flexion Range of Motion angles in degrees.

The National Institutes of Health Stroke Scale (NIHSS) is a systematic assessment tool that provides a quantitative measure of stroke-related neurologic deficit. the scale is widely used as a clinical assessment tool to evaluate acuity of stroke patients, determine appropriate treatment, and predict patient outcome. The NIHSS is a 15-item neurologic examination stroke scale used to evaluate the effect of acute cerebral infarction on the levels of consciousness, language, neglect, visual-field loss, extraocular movement, motor strength, ataxia, dysarthria, and sensory loss. A trained observer rates the patent's ability to answer questions and perform activities. Ratings for each item are scored with 3 to 5 grades with 0 as normal, and there is an allowance for untestable items. The single patient assessment requires less than 10 minutes to complete. (http://www.nihstrokescale.org/)