Abstract: The present invention discloses a simulator system and method for exercising the limbs of a user confined to the wheelchairs. The method of rehabilitation of the user includes providing a simulator system mountable on the wheelchair, configuring various parameters associated with a gear motor, and a pair of pedals using a user interface device, configuring the pedals in a specific direction and position, initiating exercise by using the user interface device, monitoring a set of information related to pedaling during or after the exercise on the user interface device, receiving the parameters associated with the gear motor, the pair of pedals from the user interface device, and sensors, analyzing the parameters received from the sensors and the user interface device, and generating corrective commands based on the analysis of the received parameters.