The Pilates method seeks to develop controlled movement from a strong core and it does this by using a range of apparatus to guide and train the body.

Each piece of apparatus has its own repertoire of exercises and most of the exercises done on the various pieces of Pilates apparatus are resistance training since they make use of springs to provide additional resistance. Using springs results in “progressive resistance”, meaning the resistance increases as the spring is stretched. The most widely used piece of apparatus, and probably the most important, is the Reformer, but other apparatus used in a traditional Pilates studio include the Cadillac (also called the Trapeze Table), the high (or electric) chair, the Wunda Chair, the baby Chair, and the Ladder Barrel, the Spine Corrector (Step Barrel) and small barrel.