... AND the Resistance. THERACK Workout Station is the only piece of equipment that takes old school moves like dips, ab crunches, knee ... Abs, Bicep, Chest, Delts, Lats, Traps and Triceps. While THERACK is a solid piece of equipment, it still remains portable for ... Muscle are in on THERACK. And, Iron Man said THERACK is "old-school exercises with state-of the-art engineering." Exercise magazine - ...