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Lagree is one of the fastest-growing workout methods in the world — and one of the most misunderstood. It's not Pilates. It's not HIIT. It's not yoga. It sits in a category of its own: a low-impact, high-intensity strength method built around slow, controlled movement and time under tension. This guide explains exactly what Lagree is, what it does to your body, and — crucially — what to wear.
What Is Lagree?
Lagree is a fitness method created by Sebastian Lagree in Los Angeles in the early 2000s. It uses a machine called the Megaformer — an evolved version of the Pilates reformer — to deliver full-body muscular endurance and strength training through slow, controlled movements that keep the targeted muscle under tension for extended periods.
The defining characteristic of Lagree is time under tension: instead of performing 15 fast reps, you perform a movement so slowly that the muscle fatigues in 45–90 seconds without your joints ever bearing the kind of load that causes impact injury. The result is a method that is simultaneously low-impact (no jumping, no running) and extremely high-intensity (most people describe their first class as the hardest thing they've ever done).
The Megaformer
The Megaformer looks like an elongated reformer carriage with springs, straps, handles, and platforms at both ends. Each exercise is performed on or around the moving carriage, which provides both resistance (from the springs) and instability (because the carriage moves). This instability forces the stabiliser muscles — core, glutes, inner thighs — to work constantly, even when they're not the primary target of the exercise.
A standard Lagree class uses 5–7 spring configurations, each changing the resistance and therefore the target muscle group. You transition quickly between exercises — usually with less than 10 seconds of rest — which keeps the heart rate elevated throughout.
What Lagree Does to Your Body
Muscular endurance and tone: The slow tempo and high time under tension stimulates slow-twitch muscle fibres — the ones responsible for endurance and the lean, defined appearance associated with dancers and gymnasts.
Core strength: Almost every exercise on the Megaformer activates the core, either as a primary target or as a stabiliser. After 6–8 weeks of consistent Lagree, most people notice significant improvement in core definition and posture.
Cardiovascular conditioning: Because rest periods are minimal and the muscular effort is continuous, the heart rate stays elevated — typically 60–80% of max heart rate — producing meaningful cardiovascular benefit without any impact.
Flexibility and mobility: The full range of motion required on the Megaformer, combined with the stretching components built into most classes, improves functional flexibility in the hips, hamstrings, and thoracic spine.
Lagree vs. Pilates: The Key Differences
The most common question: is Lagree just Pilates? No — though they share DNA. Both use a spring-loaded machine, both emphasise core engagement and controlled movement. But Lagree is faster-paced, more muscularly demanding, and designed specifically to cause muscular fatigue. Classical Pilates is primarily about movement quality, alignment, and rehabilitation. Lagree is about strength and endurance — it just achieves those goals without impact. For a full breakdown, see our yoga vs. Pilates guide.
What to Wear to Lagree
Outfit choice matters more in Lagree than in almost any other workout — here's why:
Tightness is essential. On the Megaformer, loose fabric catches on the carriage and the foot bar. Leggings should be full-length or 7/8, fitted, and non-slip at the ankle. Baggy shorts or wide-leg pants are a safety issue as much as a style issue.
Opacity matters. Lagree involves a lot of inverted and split-stance positions. Squat-proof, high-opacity leggings are non-negotiable.
The bra needs to stay in place. Many Lagree exercises involve bending, twisting, and extending — a sports bra that shifts is both uncomfortable and distracting.
Grip socks are mandatory in most Lagree studios. The footplate of the carriage is smooth; grip socks prevent slipping during footwork and jumping-lunge series.
The HEY HONEY leggings in the full Leggings range and the The Class Surf Style collection tick every box: four-way stretch, high-waist, squat-proof, fitted ankle. They move with the Megaformer, not against it. For beginner outfit tips, see our guide to what to wear to your first studio class.
Frequently Asked Questions About Lagree
Is Lagree good for beginners?
Yes — but expect it to be harder than you anticipate. Most first-timers find their first Lagree class the most challenging workout they've done, despite the low-impact format. The method is scalable: spring resistance can be increased or decreased, and instructors offer modifications for every exercise. Beginners should book a fundamentals or intro class where the instructor explains the machine and common form cues before the full pace begins.
How often should I do Lagree?
Two to three times per week is the most common recommendation for visible results. Because Lagree causes significant muscular fatigue, daily sessions for beginners are counterproductive — the muscle needs 48 hours to recover and rebuild. After 6–8 weeks, some practitioners move to 4–5 sessions per week as their recovery improves.
What is a Megaformer?
The Megaformer is the machine used in Lagree classes. It consists of a central carriage that moves on rails between two platforms, with spring resistance that can be adjusted from very light to very heavy. Handles, straps, and bars at each end allow exercises in multiple positions — kneeling, standing, lying, and plank. It was designed by Sebastian Lagree as an evolution of the traditional Pilates reformer, optimised for strength and endurance rather than rehabilitation.
Does Lagree help with weight loss?
Yes — Lagree is effective for body composition change, which is often more relevant than scale weight. The high time under tension builds lean muscle, which increases resting metabolic rate. The cardiovascular component burns calories during the class. And the combination produces the sustained post-exercise calorie burn (EPOC) associated with resistance training. Most consistent practitioners notice body composition changes — reduced body fat, improved definition — within 6–10 weeks.
