The hinge: bracing, bar path and the flat-back myth

The hinge is the highest-return movement in the program and the one people are most frightened of, largely because of a phrase they half-remember: keep your back flat. It's well-meant and it's imprecise enough to cause the problem it's trying to prevent.

Here's what your spine is actually doing under a loaded hinge, how to brace so it stays there, and the three checks that take ten seconds before every working set.

Neutral is a range, not a line

Your spine has natural curves — an inward curve at the lower back, an outward one at the upper. Neutral means those curves are roughly preserved, and it covers a small band of positions rather than one exact posture. Nobody's back is literally flat under a bar, and trying to force it flat usually produces an overextended lower back, which is its own kind of load.

The useful instruction is: set the curve you have, then don't let it change while the weight moves. A hinge that starts neutral and finishes neutral is a good hinge. A hinge where the lower back rounds progressively through the pull is the one worth fixing — not because a rounded spine is inherently dangerous, but because a position that changes under load is a position you aren't controlling.

Your neutral is also not somebody else's. Hip shape, femur length and torso proportions all shift where the position sits, which is why two people pulling well can look quite different from the side. Find yours standing: stand tall, tuck the pelvis under, arch it hard, then settle halfway between the two. That's the shape you're holding.

Bracing, properly

Bracing is what holds that position. It is not sucking your stomach in. Done right it's a 360-degree pressurisation — you breathe into the belly and the sides of your torso, then tense the whole cylinder as if someone is about to hit you in the stomach, and you hold that pressure for the duration of the rep.

Practice it standing before you practice it loaded. Put one hand on your stomach and one on the side of your ribs. Breathe so both hands move outward. Then brace hard enough that neither hand can push in. That's the feeling you want at the top of every hinge, before the bar leaves the floor.

One health note: holding a hard brace against a closed airway raises blood pressure sharply and briefly. That's normal in trained lifters and it's still a reason to check with a clinician first if you have high blood pressure, a cardiovascular condition, or you're pregnant.

Where the bar actually travels

Straight up. The bar should stay over the middle of your foot from the floor to lockout and travel in as close to a vertical line as you can manage, brushing the shins and thighs the whole way. Any horizontal drift is a longer lever on your lower back and wasted effort.

That constraint sets your start position rather than the other way round. Bar over midfoot first, then shins to the bar, then chest up and lats set — not a comfortable-looking squat position that leaves the bar an inch forward. On a dumbbell Romanian deadlift the same rule holds: the weights stay in contact with the legs, and the hips travel backward far more than the knees bend.

“Set the curve you have, then refuse to let the weight change it.”

The three-step check before every working set

Run this at the top of each set. It takes ten seconds and it catches almost everything the form-video links are showing you.

• Feet and bar: bar over midfoot, feet hip-width, weight spread across the whole foot rather than the toes or the heel.
• Air and brace: one breath into belly and ribs, tense hard, then take the slack out of the bar before you pull — you should feel the plates load before anything leaves the floor.
• Lats and line: pull the bar into your shins, imagine squeezing something under your armpits, then push the floor away and let hips and chest rise together at the same rate.
• Between reps, reset. Breathe, brace, repeat. A hinge set is a series of single reps, not one long rep with pauses.
• Finish standing tall with glutes squeezed. No leaning back at the top — that's the overextension you were avoiding at the bottom.

What a failed rep should look like

Not a rescue. If the bar stalls below the knee and your back starts to round to keep it moving, put it down. On Lower Body Power days the hinge is programmed at loads that let you keep the position, and one grinding rep is worth far less than the two sessions it can cost you.

Back pain during hinging is common and usually settles, but persistent pain, pain that radiates down a leg, or any numbness is a reason to stop and see a clinician rather than a reason to try a different cue.