An exercise device including a support surface and at least two position sensors arranged along a sensing plane relative to the support surface, with the position sensors adapted to detect a presence of a user along the sensing plane. The exercise device further includes a controller in communication with the position sensors to determine a position of the user relative to the sensing plane. The controller has a closed loop feedback mode adapted to process at least one input parameter provided by the user, and to further measure a performance criteria of the user related to the input parameter and to provide feedback to the user indicative of a measurement of the performance criteria.