Pilates Breathing Explained: Why It's Different From Yoga

If you take a Pilates class today and the instructor never cues your breathing — or cues it the same way a yoga teacher would — you are not actually doing Pilates. You're doing floor exercises with Pilates marketing. The breath is what makes Pilates Pilates. Here's what it is and why it matters.

What lateral breathing is

Lateral breathing — also called rib breathing, three-dimensional breathing, or posterolateral breathing — is breath that expands the rib cage outward (to the sides) and slightly back, rather than down into the belly. The diaphragm still descends on inhale (it has to, that's how lungs fill), but the abdominal wall stays gently engaged so that the bulk of expansion happens in the lower ribs.

If you place your hands on your lower ribs with thumbs at the back and palms wrapping forward, lateral breathing makes your hands move apart. Diaphragmatic belly breathing makes your stomach push out instead.

How it differs from yoga breath

Yoga uses primarily diaphragmatic (belly) breathing. On inhale, the abdomen expands outward; on exhale, it draws in. This is appropriate for yoga — the goal is relaxation, parasympathetic activation, and a settled mind. Belly breathing achieves all of that.

Pilates uses lateral breathing because Pilates exercises require the deep core to stay engaged throughout. If the abdomen relaxes outward on inhale, the core disengages, and the spine loses support. More on the broader Pilates vs yoga differences here.

This isn't an aesthetic preference. It's the mechanism that lets you do a roll-up without straining your back.

Why Pilates uses this breath

Three reasons.

Core integrity under movement. Lateral breathing lets you maintain abdominal engagement through inhale and exhale, which protects the spine during loaded movement. Without it, the deep core releases every time you inhale — and most Pilates exercises become harder and less safe.

Rib mobility. Most adults have stiff, immobile rib cages, particularly in the upper back. Lateral breathing actively mobilizes the thoracic spine and rib joints in every breath. Over months of practice, this contributes to the upright, open-chested posture associated with experienced Pilates practitioners.

Efficiency. The breath becomes a metronome that paces the exercise. You learn to use the exhale to deepen into a movement and the inhale to prepare. Once breath and movement are integrated, Pilates stops feeling like exercises and starts feeling like a system. This is the principle of flow.

How to learn it

Three exercises that teach lateral breathing reliably:

1. Hand-on-ribs sitting. Sit upright. Wrap your hands around your lower ribs, thumbs at the back. Inhale slowly and try to widen your hands outward. Exhale and let your hands draw back in. Don't try to expand your belly. 8-10 breaths.

2. Towel wrap. Wrap a long towel around your lower ribs and hold the ends crossed in front of you with gentle tension. As you inhale, expand against the towel's resistance. The tactile feedback teaches the body what you're trying to do. 8-10 breaths.

3. Prone breath. Lie face down with your forehead on your hands. Now you can't breathe into your belly (the floor blocks it), so the body learns to breathe into the back and sides automatically. 8-10 breaths. Most people find this exercise reveals immediately how shallow their breath usually is.

Pairing breath with movement

Once lateral breathing feels natural, you can start coordinating it with movement. The general rule:

• Inhale to prepare — usually during the easier phase of an exercise, or while lengthening
• Exhale during effort or flexion — when the abdominal work peaks or when the spine flexes

In a roll-up: inhale lying flat, then exhale as you peel the spine off the mat. In a hundred: inhale for 5 arm pumps, exhale for 5. In a side-kick series: inhale to reach the leg long, exhale to bring it back.

The first 4-6 weeks of practice are partly about learning these breath patterns. After that, they become automatic and you stop having to think about them. That's the moment Pilates starts to feel different — when the breath, the movement, and the engagement of the core all happen as one thing, not three.

This is also the moment you start to understand why Pilates teachers spend so much time on breath. It really is the foundation. Lose it and you've lost most of what makes the system work.

Frequently asked

Why is Pilates breathing into the ribs instead of the belly?

Belly breathing relaxes the abdominal muscles, which is incompatible with the core engagement Pilates exercises require. Lateral (rib) breathing keeps the deep core engaged while still allowing full breath capacity. The two breathing styles serve different goals.

Is yoga breathing wrong or just different?

Just different, and appropriate for what yoga is trying to do. Diaphragmatic belly breathing is excellent for stress reduction and relaxation. Lateral rib breathing is excellent for stable core movement. Neither is universally better.

I can't feel my ribs expand sideways — what am I doing wrong?

Try this: sit upright, place your hands on your lower ribs with thumbs at the back and fingers around the front. Inhale and try to push your hands apart. The cue 'breathe into your back' helps some people. It takes practice — most beginners need 2-3 weeks.

When do I inhale and exhale during Pilates exercises?

Generally: inhale to prepare and lengthen; exhale during the effort or flexion phase. So during a roll-up, you inhale at the start, then exhale as you peel up. Specific exercises have specific patterns — your instructor will cue them.