A user equipment providing a rehabilitation exercise to a patient, the exercise including playing a videogame. The user equipment includes a processor, a display, and a motion sensing input device. The processor is configured to run the videogame, the display to show a moving target, and the device to transduce a motion of the patient into a motion of a marker on the display. The processor is configured to: before the patient starts the exercise, select a target trajectory and a maximum target speed; and, during the exercise, adjust a current target speed based on the maximum speed and a distance between the target and the marker. The patient can perform rehabilitation by playing videogames that may be remotely controlled by a therapist and whose level of difficulty may be automatically adjusted based on the patient current condition.