Pilates is a physical fitness system developed in the early 20th century by Joseph Pilates. It focuses on spinal and pelvic alignment, core strength, flexibility, and breath control. Pilates utilizes exercises that can be done with or without equipment, including mat exercises as well as exercises using devices like the Reformer, Cadillac, and Wunda Chair. The Pilates method aims to develop controlled movement through strengthening the core.