Pilates is a form of exercise that aims to develop flexibility, good posture, strength, and balance all at the same time. There are tons of ways to work your core but adding Pilates moves into your routine is a great way to engage your core muscles in a new way, because everyone gets sick of doing planks after a while. Strengthen your core and stretch your spine with these Pilates moves for beginners. Joseph Pilates developed a sequence of exercises that move your whole body, focusing on streng