Benefits of Pilates: What the Research Actually Shows

The best-supported benefits of pilates are stronger core muscles, less pain and disability for people with chronic low back pain, and better balance, strength, and flexibility, especially in older adults. Research also links regular pilates to lower depression and anxiety symptoms, while its effects on weight and cardio fitness are modest.

Plenty of articles list 15 or 20 benefits of pilates without a single source. This one sticks to what systematic reviews and health organizations actually report, says how strong the evidence is, and is clear about what pilates does not do well. If you are brand new, our pilates for beginners guide covers what a class looks like.

Benefits at a glance

1. A stronger core, and a more useful one

Pilates was built around what Joseph Pilates called the "powerhouse": the deep muscles of the abdomen, lower back, hips, and pelvic floor. Nearly every exercise asks you to keep your trunk stable while your arms and legs move, which trains the core the way you use it in daily life.

Why that matters: Harvard Health describes the core as the link between your upper and lower body and notes that a strong core helps balance and stability and can help prevent falls and injuries. It is involved in things as ordinary as bending to put on shoes or standing for a long time. A 2012 systematic review of 119 papers found broad agreement that pilates is a mind-body exercise focused on strength, core stability, flexibility, muscle control, posture, and breathing.

2. Less chronic low back pain

This is the best-researched benefit of pilates. A 2022 network meta-analysis in the Journal of Orthopaedic and Sports Physical Therapy pooled 118 trials with 9,710 adults with chronic low back pain. Almost every type of exercise helped, but pilates ranked highest for reducing both pain and disability. The most effective programs included at least one to two pilates or strength sessions per week, and pilates programs of three to nine weeks showed benefits.

Two caveats. These studies are about chronic, nonspecific back pain, not acute injuries or conditions like a herniated disc. And many of the trials used supervised, clinical pilates. If you have back pain, check with your doctor or physical therapist first and tell your instructor before class.

3. Better balance and strength as you age

A 2021 systematic review and meta-analysis in Physiotherapy looked at 39 studies of pilates in older adults. Compared with control groups, pilates had moderate effects on balance, strength, flexibility, and day-to-day functional ability, and a large effect on reducing fall risk. The certainty of the evidence was moderate for strength and falls and lower for the others.

Harvard Health makes a similar case, describing pilates as focused on core strength, balance, and flexibility, and adaptable on a mat, a reformer, or even a chair to different abilities. That adaptability is a large part of why it works for people who cannot do high-impact exercise.

4. Flexibility and mobility

Pilates moves your spine through flexion, extension, rotation, and side bending, and many exercises lengthen the hamstrings, hips, and shoulders under control. The 2021 review above found a moderate improvement in flexibility in older adults, with lower certainty. In practice, most people notice they move more easily within a few weeks. If deep flexibility is your main goal, yoga spends more time on it; our pilates vs yoga comparison covers the tradeoffs.

5. Mood: less depression and anxiety

A 2023 meta-analysis of 18 randomized trials with 827 women found moderate evidence that pilates reduced depression and anxiety symptoms. The authors describe pilates as a possible add-on to other care, not a treatment on its own. Most of the research is in women, so it says less about men. Exercise of almost any kind tends to help mood. Pilates' focus on breathing and control may be part of why people find it calming.

6. Low impact, adaptable to most bodies

There is no jumping or pounding in classical pilates, and every exercise has easier and harder versions. That makes it a common choice for people coming back from injury, during and after pregnancy (with medical clearance and a qualified instructor), and for people whose joints do not tolerate running. Reformer springs can make an exercise easier or harder, which is one reason reformer classes suit a wide range of people. Our guide to what reformer pilates is explains the machine.

What the research does not support as strongly

Weight loss

The evidence is mixed. A 2021 meta-analysis of 11 trials found that pilates reduced body weight, BMI, and body fat percentage in adults with overweight or obesity, with an average weight reduction of about 2.4 kg. A 2020 meta-analysis of mat pilates found it was no better than other types of training or control conditions for body composition. We cover this in detail in is pilates good for weight loss.

Cardio fitness

Pilates is not a strong cardio workout. An American Council on Exercise study of 50-minute mat sessions found the beginner routine stayed below recommended cardio intensity, and the advanced routine was roughly comparable to brisk walking. ACE concluded the cardiovascular benefits were limited while still valuing pilates for strength, balance, coordination, and flexibility. Faster reformer or "cardio" pilates formats push harder, but if heart health is your goal, add walking, cycling, or another aerobic activity.

"Long, lean muscles"

Muscles do not get longer from pilates. They get stronger and more defined, and better posture can make you look taller. The phrase is marketing, not physiology.

How much pilates you need for benefits

Two to three sessions a week is the usual recommendation and lines up with the back pain research, which found benefits with one to two sessions a week over three to nine weeks. The CDC's guidelines ask adults for muscle-strengthening activity on at least two days a week plus 150 minutes of moderate aerobic activity, and pilates can cover the strength part. For a full breakdown by goal, see how often you should do pilates.

Whatever you choose, the benefits above came from people who kept going for weeks. A standing class with a friend makes that easier. Full disclosure: that is the idea behind our app, Corvi. You book with your studio as usual, then check in on Corvi to keep a weekly streak and see where your friends are training. It is free and does not book classes or take payments.

Mat or reformer for the benefits?

Both deliver the core, balance, and flexibility benefits. Much of the research above used mat pilates, often supervised. Reformer classes add spring resistance, which helps with strength and gives more support for beginners and people with injuries. Mat classes are cheaper and easier to find. In Portland, Maine, our pilates directory lists every studio we track, from reformer studios to mat classes on yoga schedules.

Common questions

What does pilates do for your body?

Pilates strengthens the deep core muscles around your trunk and pelvis, along with your hips, glutes, and shoulders, while improving flexibility and control. Research reviews link it to less pain and disability in chronic low back pain and to better balance, strength, and lower fall risk in older adults. It is low impact and adaptable to most fitness levels.

How long does it take to see results from pilates?

Many people notice better posture awareness and core control within two to four weeks of practicing two or three times a week. Studies on low back pain found benefits in programs lasting three to nine weeks. Visible changes in muscle tone usually take longer, often two to three months, and depend on consistency and overall activity.

Is pilates better than yoga?

Neither is better overall. Pilates focuses more on core strength and controlled movement, often with equipment like the reformer. Yoga generally emphasizes flexibility, balance, and breath, with styles ranging from restful to athletic. Many people do both. Pick the one you will show up for regularly, since consistency matters more than the method.

Can pilates replace the gym?

For some goals, partly. Pilates builds core strength, muscular endurance, and mobility, and reformer classes add real resistance. It is light on cardio and heavy loading, though. An ACE study found mat pilates had limited cardiovascular benefit, so most people get a more complete routine by adding brisk walking, cycling, or heavier strength training.

How many times a week should you do pilates for benefits?

Two to three sessions a week is the common recommendation and matches the research. A large review of chronic low back pain trials found the best results with programs of at least one to two pilates sessions per week. Once a week still helps, but changes come more slowly. Rest days between harder reformer sessions help recovery.

Find your next class: compare mat and reformer studios on our Portland pilates directory.