US Patent 7736286 Exercise system utilizing elastic bands

An exercise system is disclosed that is configured to provide mounting surfaces for elastic resistance training elements. The system has a frame having first and second vertical columns and one or more supports configured to rest on a floor surface to maintain the frame in a substantially vertical orientation. The system also has first and second extendable members that are slideably disposed within the first and second vertical columns, and one or more rings coupled to the first and second extendable members that function as attachment points to secure one or more elastic resistance training elements to the system. The position of the rings is adjustable to allow a variety of exercises with the elastic training element.