In exhale Barre classes, our Core Conditioning Series follows a pattern: Flat Back, Round Back, and finally the Curl – which introduces a progressive challenge of increased spinal flexibility with each position. All three exercises address two fundamental needs: strengthening the core while building flexibility in the back. Joseph Pilates always preached that the “supple spine equals a youthful body,” and it’s true. The more spinal strength and flexibility you have, the more strength and flexibility you’ll see in every other area. The curl takes discipline because it’s a complex position. You have to prioritize pressing the lower back down on the mat while simultaneously curling up enough to keep the shoulder