The invention relates to a method and system for individually exercising
one or more parameters of hand movement such as range, speed,
fractionation and strength in a virtual reality environment and for
providing performance-based interaction with the user to increase user
motivation while exercising. The present invention can be used for
rehabilitation of neuromotor disorders, such as a stroke. A first input
device senses position of digits of the hand of the user while the user is
performing an exercise by interacting with a virtual image. A second input
device provides force feedback to the user and measures position of the
digits of the hand while the user is performing an exercise by interacting
with a virtual image. The virtual images are updated based on targets
determined for the user's performance in order to provide harder or easier
exercises.