<qa>  What is the purpose of the research?Even though robotic devices are capable of exerting force cues, these devices can be difficult to implement in a home setting due to their complexity and price. Consequently, in this project the investigators will study the use of commercially available technology to deliver feedback about the users compensatory movements. The investigators will compare the use of force and visual feedback to study their effect on reducing compensatory levels. The investigators have chosen to use visual feedback as it can be delivered by systems readily available in the home e.g. television sets and personal computers without the need to purchase more complex robotic devices. If the results from this project support the use of commercially available technology, this will provide further evidence of the potential use of this technology for substituting or complementing robotic devices once the users continue their therapy programs at home. 