What is the difference between Pilates and GYROTONIC® abdominal work and the crunches I’ve done for years?
Both forms of exercise focus on strengthening all of your “core” muscles, while crunches only strengthen the most superficial layer, known as the rectus abdominus. Your deeper muscles: transversus abdominus, obliques and lower back muscles form a corset around your torso, stabilizing the spine and pelvis, while allowing freedom of movement in your limbs.