For the mermaid exercise, what spring tension should be used?

The mermaid exercise typically requires a lighter spring tension to effectively facilitate the movement's focus on lateral flexion and articulation of the spine. Using one spring allows for enough resistance to engage the core and promote stability while also ensuring that the movements can be performed fluidly and with control.

This moderate tension encourages proper alignment and helps maintain the fluidity of motion required for the mermaid, making it accessible for practitioners while still providing enough challenge to enhance strength and flexibility. Choosing lighter spring tension is essential in exercises like the mermaid, where excessive resistance could hinder the execution of the technique and discourage the gentle, flowing movements that characterize this exercise.