Abstract: A system for resistance training of an athlete with a plurality of elastic chords includes a frame including a top and an opposite bottom. The frame has sufficient weight to resist movement when the athlete exerts an athletic training force on the frame. At least one attachment structure is affixed to the frame. The attachment structure is configured to attach at least one of the elastic chords in a position so as to be usable in a selected resistance training exercise. At least one storage compartment is attached to the frame. The storage compartment has a size and configuration to facilitate storage of the plurality of elastic chords therein.