US Patent 10974094 Exercise system and method

A deck for a treadmill includes a continuous track, and a plurality of slats connected to the track. The track and the plurality of slats at least partly define an inner space of the deck, and are rotatable about the inner space. The deck also includes a first motor configured to modify a speed of rotation of the track, and a second motor configured to modify a position of the deck relative to a support surface on which the deck is supported. The first motor and the second motor are disposed within the inner space.