What does the "Corkscrew" exercise target in Reformer Pilates?

The "Corkscrew" exercise in Reformer Pilates primarily targets the obliques, which are the muscles located on the sides of the abdomen, and promotes spinal mobility. During the exercise, the performer engages the core, particularly the obliques, to control the movement while the legs describe a circular motion. This not only strengthens the obliques but also encourages rotation of the spine, enhancing flexibility and mobility in that area. Additionally, the exercise engages the deeper core muscles, contributing to overall stability and strength through the torso.

While other muscle groups may be involved to some extent, the primary focus and benefits of the "Corkscrew" center around improving the strength of the obliques and the mobility of the spine, making it a unique and valuable addition to a Reformer Pilates practice.