Bracing Your Core When Lifting: How to Breathe Under Load
To brace your core for a lift, take a breath into your belly and sides rather than your chest, then tighten your trunk muscles around that breath as if you were about to be nudged in the stomach. Hold that pressure through the hardest part of the rep and breathe out once you are past it or at the top. For lighter, higher-rep work you can breathe out steadily through each rep instead of holding. Done well, bracing makes your trunk stiff enough that force goes into the bar rather than leaking through a folding spine.
It sounds simple and is surprisingly hard to do consistently. Most people either do not brace at all or brace by sucking the stomach in, which does the opposite of what they need.
What bracing actually does
Your trunk is a cylinder: the diaphragm at the top, the pelvic floor at the bottom, and the abdominal and back muscles around the sides. When you breathe in and then tighten everything around that air, the pressure inside the cylinder rises. A pressurised cylinder is much harder to bend than an empty one, in the same way a full drinks can is harder to crush than an empty one.
That stiffness lets you transfer force from your legs and hips into the bar. In a squat, it keeps your chest from collapsing forward as you stand up. In a deadlift, it keeps your back from rounding as the bar leaves the floor. It is not about any single muscle; it is the whole trunk working together.
Bracing is not sucking in
The most common mistake is pulling the belly button towards the spine. That narrows the cylinder and reduces the pressure you can create. A good brace makes your waist slightly wider, not narrower. If you put your hands on your sides just above your hips and brace properly, you should feel your fingers pushed outwards.
The second common mistake is breathing into the chest. The shoulders rise, the ribs flare upwards, and the air sits high where it does little for the lower trunk. You want the breath to go low and wide.
How to learn it: a four-step drill
- Lie on your back, knees bent. Put one hand on your belly and the other on your side just above the hip.
- Breathe in through your nose for about three seconds. Aim to move both hands outwards, the belly forwards and the sides out, with the chest staying fairly still.
- Tighten around it. Without letting the air out, tense your trunk as if bracing for a light poke in the stomach. Your waist stays wide; nothing pulls inwards.
- Hold for five seconds, then breathe out slowly. Repeat five times.
Once that feels natural, do it standing, then holding a dumbbell in a goblet position, then during an actual squat. Most people need a few sessions before it happens without thinking. The dead bug is a useful follow-up: it teaches you to keep that trunk position while your arms and legs move.
Hold or breathe out? Matching the breath to the lift
| Type of set | Breathing pattern |
|---|---|
| Heavy squats and deadlifts, 1-5 reps | Breathe in and brace before each rep, hold through the hard part, breathe out at the top. Reset fully between reps. |
| Moderate sets, 6-12 reps | Brace before each rep. You can let a little air out near the top and top up before the next one. |
| Lighter accessory work, cable and machine exercises | Keep a moderate brace, breathe out through the effort, breathe in on the easier phase. |
| Carries and long holds | Stay braced but breathe shallowly and steadily behind it. Holding your breath for a 40-metre carry is a mistake. |
The breath-hold and blood pressure
Holding your breath against a closed throat during effort is called the Valsalva manoeuvre. Experienced lifters use a short version on heavy reps because it creates the most trunk stiffness. It also raises blood pressure briefly. For healthy adults, a hold lasting a single rep is generally considered acceptable. Check with your GP first if you have high blood pressure, a heart condition, a history of hernia, eye conditions such as glaucoma, or are pregnant. In those cases, breathing out steadily through the effort is the safer default. The NHS page on high blood pressure is a good starting point if you are unsure where you stand.
Bracing in specific lifts
Squat
Brace before you unrack, then re-brace before every rep. The moment most people lose it is the bottom of the squat, where the chest drops and the hips shoot up. A good brace keeps your torso angle the same on the way up as on the way down. Our guide on how to squat properly covers stance and depth.
Deadlift
Brace in the start position, before you pull, not halfway through. Pull the slack out of the bar, take the breath, brace, then push the floor away. The deadlift guide walks through the setup in order.
Overhead press
Brace and squeeze the glutes. Without both, the lower back arches as the bar goes up and the press becomes a lean-back.
Where a lifting belt fits in
A belt gives the trunk muscles something to push against, which helps you create more pressure. It does not do the bracing for you; if you cannot brace without a belt, a belt will not fix it. Most people training for general strength and health never need one. If you get to the stage of very heavy squats and deadlifts, a belt on your top sets is a reasonable choice, and the bracing technique is the same: breathe low and push your waist out into it.
Common mistakes
- Bracing once at the start of a set and never again. The brace fades over a few reps. Re-brace each rep on heavy sets.
- Bracing at 100 per cent for everything. Picking up a 5 kg dumbbell does not need a maximal brace. Match effort to load.
- Breathing in at the bottom of a squat. You lose pressure exactly when you need it. Breathe at the top.
- Turning red and dizzy. A sign you are holding too long or straining too hard. Shorten the hold and breathe out sooner.
Learning it with a coach
Bracing is hard to see in yourself. A coach can feel whether your waist pushes out, watch when your chest drops, and cue it before the habit sets. It is one of the first things I teach in the private studio under The Highgate House, usually with a dumbbell before any barbell work. If you would like that kind of attention on your lifting, see personal training in Highgate, or read more about what a 1-1 session with Artem includes.
Questions we get asked
Should I brace all day?
No. Bracing is for lifting heavy things. Walking around with your trunk clenched tends to make you stiffer, not stronger.
Does bracing replace core exercises?
It complements them. Heavy squats and deadlifts train the trunk hard when you brace well, but exercises like dead bugs and Pallof presses build the control that makes bracing easier.
How long does it take to learn?
Most people can do it on demand within two or three sessions. Making it automatic under heavy load takes a few weeks of consistent practice.
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