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The bed, and what it does

What a reformer is, and how it works

What is a reformer, and how does it work?

A reformer is a bed-sized frame with a padded sliding platform, the carriage, running on rails. Springs connect the carriage to the frame and set the resistance. You move it using ropes and straps, or by pushing against a fixed bar at one end.

One bed,manysettings

The parts you’ll hear about

Four things do almost all the work, and you’ll know them all by the end of your first class.

The carriage
The padded platform that slides along the frame. You lie, sit, kneel or stand on it, and nearly every exercise is about controlling how it moves.
The springs
Usually three to five of them, joining the carriage to the frame. They set the resistance, and they can hold you up just as easily as make things harder.
The straps and ropes
Handles on ropes running over pulleys, for arm and leg work. They let you work through a range while the rest of you stays supported.
The foot-bar
A padded bar at one end you press against with your feet or hands. It adjusts for height, and it’s where most classes start.

Resistancethat alsosupports

The idea that makes it work

On a mat, gravity is your only resistance and it never changes. Your body weight is your body weight. On a reformer the springs sit between you and the load, so difficulty becomes a dial rather than a fixed thing.

And here’s the bit that surprises everyone: lighter springs don’t always mean easier. In plenty of exercises a lighter spring gives the carriage less help, so your own control has to do more of the work.

The moving carriage of an Align Pilates reformer
The carriage runs on rails, with the springs underneath.

Why it suits everyone in the room

The same bed works for you in your first week and for the woman beside you in her tenth year, because everything that sets the difficulty, the springs, the bar height, how far you travel, changes in seconds.

That’s the practical reason a reformer class can be genuinely mixed without anyone being left behind or held back.

Common questions

Why is it called a reformer?

Joseph Pilates named it, from his idea of reforming the body through controlled, repeatable movement. The name has stuck for a century.

Is a reformer the same as a Pilates machine?

People usually say "Pilates machine" and mean a reformer. Studios use several bits of apparatus, but the reformer is the one you’ll meet most.

What beds do you have?

Brand-new Align Pilates reformers.