An exercise machine with an adaptive interface comprises: a processing unit (7) for managing and controlling the machine; sensor means (9) for transferring information about the machine operating state to the processing unit (7); a user interface (10) equipped with means (11) for displaying the machine current operating state; manual control means (12) for the machine functions; optimization means (19), controlled by the processing unit (7) and designed to modify the display means (11) and the manual control means (12) when there are variations in at least one machine operating parameter detected by the sensor means (9).