Intension was created on the belief that you should not have to choose. It is the luxury strength studio Chelsea deserves: effective first, considered throughout.

Most group fitness asks you to keep up. The Tension Method asks you to slow down.

This guide sets out, as clearly and fairly as we can, what Lagree is, what slow resistance training means more broadly, and where independent methods such as our own Tension Method fit in.

At first glance, a Tensionformer and a Pilates reformer can look like close relatives. This guide sets out what each machine is for, how the workouts compare, and how to decide which suits you.

This guide explains what a Tensionformer is, how it works, and why we chose every detail with an instructor's eye.

Chelsea has its restaurants, its galleries and its tailors. This winter, it gains a strength studio to match.