Which Is Harder: Mat Pilates vs Reformer? The Truth Might Surprise You

Is Reformer Pilates Really Harder Than Mat Pilates?

If you’ve ever peeked into a Pilates studio, you’ve probably seen those impressive reformer machines and thought, “That must be way harder than mat Pilates.” It’s a common assumption, especially because reformer classes often come with a higher price tag and a reputation for being more advanced.

But is reformer Pilates really more challenging than mat work? The answer isn’t as straightforward as you might think and the truth might just surprise you.

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The Myth: “Reformer Is for Pros, Mat Is for Beginners”

Let’s start with the myth that mat Pilates is “easy” and reformer Pilates is “hard.” This belief is everywhere, on social media, in conversations with friends, and even in some studios.

It’s easy to see why: reformer machines look intimidating, and the resistance springs seem to promise a tougher workout. Plus, reformer classes are more expensive, so it’s natural to assume you’re paying for extra intensity.

But here’s the reality: both mat and reformer Pilates can be incredibly challenging, and which one feels “harder” depends on your body, your experience, and the way the session is structured. In fact, many people are surprised to find that mat Pilates can leave them just as sore, and sometimes more so, than a reformer session.

What Actually Makes a Pilates Session “Hard”?

To really answer which is harder, we need to look at what creates challenge in a Pilates workout. Three big factors come into play: gravity, resistance, and support.

• Gravity: On the mat, your body weight and gravity are your main sources of resistance. Every time you lift your legs, stabilize your spine, or control a roll-up, you’re working against gravity alone. This means your deep stabilizing muscles are constantly engaged, and there’s nowhere to hide if those muscles are tired or weak.

  
  

• Resistance: The reformer adds adjustable springs, which can make exercises both easier and harder. Some exercises, done with lighter springs require more control and stability, while heavier springs can be used to add load for strength-building. But contrary to adding challenge, the reformer can be used to provide assistance, too, making some moves more accessible than they would be on the mat.

  
  

• Support: The reformer’s moving carriage and straps can help guide your movement and provide feedback. On the mat, you’re responsible for your own control against gravity, which can be more demanding for your brain and body.

  
  

What Does the Research Say?

Several studies have compared the effects of mat and reformer Pilates.

A 2016 study in the Journal of Physical Therapy Science found that both mat and reformer Pilates significantly improved core strength and flexibility, but the reformer group saw greater gains in lower body muscle strength, thanks to the added spring resistance.

Meanwhile, the mat group reported greater improvements in balance and muscular endurance, likely because the mat requires more stabilization and body control.

Another study in the Journal of Sports Science & Medicine noted that mat Pilates can actually be more challenging for some people because it demands more from the stabilizing muscles and requires greater body awareness. Without the feedback from springs or a moving carriage, you’re forced to work harder to keep your form and control.

Mat Pilates: Surprising Strength and Subtle Difficulty

Mat Pilates is considered an essential component of the Pilates method, developed by Joseph Pilates. It’s accessible, requiring only a mat and perhaps a few props, and can be done anywhere.

But don’t let the simplicity fool you. Classic mat sequences like the “ab series” or “teaser” can humble even seasoned athletes. Because you’re using only your body weight, every muscle must pitch in to stabilize, control, and move with precision.

Mat Pilates also tends to highlight imbalances and weaknesses. Without equipment to guide you, you quickly discover which side is stronger, which muscles fatigue first, and where your posture needs work. This is why some instructors say mat work is the true test of Pilates technique and control.

Which Is Harder? It Depends on Your Body and Your Goals

So, is reformer Pilates always harder? Not necessarily.

If you’re used to the feedback and support of the reformer, switching to the mat can be a wake-up call for your core and stabilizers. For those or those seeking more resistance-based strength work, the reformer offers endless progression. For people looking to master fundamentals, improve balance, and develop total body control, the mat can be the ultimate challenge.

Ultimately, the “hardest” Pilates is the one that challenges your weaknesses, not your strengths. Many experienced practitioners find that alternating between mat and reformer keeps their practice fresh and their bodies balanced.

What Do You Need for Each?

• Mat Pilates: Requires only a mat and small props like a resistance band or ball. It’s the most accessible way to practice and can be done at home, in a hotel, or outdoors. The main requirement is body awareness and focus, since you won’t have external feedback.

  
  

• Reformer Pilates: Requires access to a reformer, which can be a major investment ($2,000–$4,000) or a membership at a studio. It’s fantastic for variety, progression, and learning new movement patterns, but does require a larger investment.

If you'd like to read more about choosing a reformer or other equipment for your home Pilates practice, read our article about creating the perfect home set up.

Myth Busted: Mat Pilates Is Not the “Easy” Option

If you’ve always assumed reformer Pilates is harder, you’re not alone, but the truth is, mat Pilates can be just as challenging, depending on your body and your practice.

Both formats offer unique benefits and can push you to your limits in different ways.

If you’re looking to explore both at home, Prompt Pilates is designed to help you do exactly that, building sessions around your goals, equipment, and experience so you can challenge yourself, stay consistent, and never get bored.

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