What is the purpose of the "Mermaid" exercise on the Reformer?

The "Mermaid" exercise on the Reformer primarily aims to stretch the side body and improve lateral flexion. This exercise facilitates a deep stretch through the oblique muscles and intercostal muscles, which are essential for enhancing flexibility and mobility in the spine. By performing the movement with the side body engaged, practitioners can benefit from improved range of motion and better posture. Additionally, it addresses the importance of lateral movement, which is often neglected in many workouts, promoting overall functional fitness.

While enhancing upper body strength, working on balance, and focusing on the core are important aspects of Pilates training, they are not the primary focus of the "Mermaid" exercise. Instead, the lateral stretching component is what makes this exercise particularly effective for engaging and elongating the side body while promoting greater spinal flexibility.