Our members are obsessed with this one.

Every month at REBEL there is one move that gets talked about more than anything else. People ask about it before class. They mention it after. They bring it up when they are telling someone why they love the reformer.

Right now, that move is short spine.

If you have done it, you already know. If you haven't, here is what to expect.

Short spine is a spinal articulation exercise on the reformer. You start lying on your back, feet in the straps. The springs help you float your hips up and over, then you slowly roll down through each vertebra one at a time until your legs lower back to the start position.

It sounds simple. It is not simple.

What it actually does: decompresses the spine, strengthens the hamstrings and glutes, and teaches your body to move in segments instead of one locked chunk. For people who sit all day, carry tension in their lower back, or have never felt their spine actually move -- this exercise is a revelation.

The reason people love it is not just what it does. It is how it feels. There is a moment mid-movement where your body figures out what it is supposed to do and everything kind of clicks. Our members describe it as feeling taller after. Looser. Like something got unstuck.

That is the reformer doing exactly what it is designed to do.