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The science behind the shake

The Lagree Method.

Lagree is a Live Method — an ever-evolving science of high-intensity, low-impact training. Not Pilates. Not HIIT. Something deliberate, technical, and built around a single biological goal: muscle fibre failure, safely, in 45 minutes.

Most workouts ask you to do more — more reps, more weight, more cardio. Lagree asks you to do less, slower, with more control. The result is the same biological outcome — micro-tears in the muscle fibre that force the body to rebuild stronger — without the joint damage, the recovery debt, or the impact stress.

The 8 Lagree Principles

The Method is governed by eight principles. They are the framework every certified Lagree instructor learns to apply.

  1. Effective angle — the precise body position that loads the target muscle
  2. Tempo — four counts up, four counts down. Eight is the goal.
  3. Tension — continuous resistance, no momentum, no rest
  4. Duration — 60–90 seconds per move, the window where slow-twitch fibres fail
  5. Range — small, precise, full-range motion within the effective angle
  6. Resistance — spring choice as a programming variable, not an afterthought
  7. Form — alignment that protects joints under load
  8. Transitions — seamless flow between moves to maintain tension

What HILIT actually means

HILIT — High-Intensity, Low-Impact Training — is the category Lagree invented. The intensity comes from sustained muscle engagement under load. The low-impact comes from eliminating the things that hurt joints over time: jumping, jarring, ballistic movement, sudden direction change. You get the cardiovascular and muscular response of a high-intensity session without the body cost.

This is why Lagree's growth in the UK and globally has accelerated since 2022. Bodies in their 30s, 40s, 50s and beyond can't sustain the impact load of CrossFit-style training over decades — but they can sustain Lagree. It's a method designed for longevity.

The Lagree Shake

"The shake" is the involuntary muscle tremor that signals you've reached fibre failure. In Lagree, the shake is not a sign of weakness — it's the point. It is the visible cue that slow-twitch fibres have run out of glycogen and are recruiting deeper. When a trainer says "find your shake," they are asking you to push your body to the biologically optimal threshold for muscle adaptation.

At Sloane, we call it the Sloane Shake — because the architecture of a Sloane class is engineered to produce it, repeatedly, across every major muscle group, over a 45-minute session.

The Micro Pro apparatus

The Micro Pro is the most advanced, compact iteration of the Lagree apparatus. Smaller than the original Megaformer, it uses the same spring-loaded resistance system but is designed for the modern boutique studio footprint. Mastering the Micro Pro gives you teaching versatility on every Lagree machine worldwide — Megapro, Evo, Microformer.

At Sloane, we built London's first studio dedicated exclusively to the Micro Pro. Our certification trains you on the apparatus reshaping the next decade of the method.

Why Lagree is not Pilates

Both use a carriage and spring resistance. The similarity ends there. Pilates prioritises flexibility, alignment, and core stability through controlled, repeatable movement. Lagree prioritises muscular failure through sustained, slow-burn tension. A Pilates teacher cues for grace. A Lagree teacher cues for the shake.

If you're considering teacher training in either, we wrote a longer comparison: Pilates vs Lagree certificationLagree vs Pilates teacher training →

What this means for teacher training

To teach Lagree you don't just learn moves. You learn the science behind why the moves work. You learn to read a body, choose a spring, write a sequence, and cue the room into the shake. Our 4-day intensive is built around exactly this — the curriculum follows the four pillars of Science, Machine, Method, and Precision.

See the full curriculum →

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