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Exercises

Barbell core exercises: direct ab work and the big lifts that brace your trunk

Published October 19, 2026

The best barbell core exercises are the barbell rollout, the barbell sit-up and the landmine twist for direct ab and oblique work, plus the front squat, deadlift and good morning, which make your whole trunk brace hard against a heavy bar. Pair one direct ab exercise with the big lifts you already do: 2 to 4 sets of rollouts or twists at 1 to 2 reps in reserve, two or three times a week, covers it.

  1. Barbell Rollout Abs
  2. Landmine Twist Abs
  3. Barbell Sit-Up Abs
  4. Front Squat Quads, Glutes, Adductors
  5. Barbell Deadlift Glutes, Lower Back
  6. Good Morning Hamstrings, Glutes
  7. Romanian Deadlift Hamstrings, Glutes

Direct ab work with a barbell

These three train the abs and obliques as the main target. The rollout makes your abs stop your lower back from arching as the bar rolls away; the sit-up curls your torso up under a bar held overhead; the landmine twist turns your torso against the weight of a bar pivoting in a corner.

Abs, anti-extension

Barbell Rollout

Abs

Rolling a loaded bar forward from your knees makes the abs work hard to keep your lower back from sagging. It is one of the hardest ab exercises you can do and needs only a barbell with round plates.

How to do it

  1. Load the bar with round plates of the same size, and kneel behind it on a pad with your hands on the bar, shoulder-width apart.
  2. Tuck your pelvis slightly so your lower back is flat, not arched.
  3. Roll the bar forward slowly, letting your hips and arms extend together, stopping before your back sags.
  4. Pull the bar back toward your knees using your abs, not by sitting your hips back first.

Cues

  • Ribs down, back flat
  • Roll only to where you can hold it
  • Hips and arms move together

Common mistakes

  • Letting the lower back arch at the far end: shorten the roll until you can keep it flat.
  • Starting the return by pushing the hips back: lead with the stomach.

Swap for: Ab Wheel Rollout, Plank

Build a session with Barbell Rollout

Abs, loaded sit-up

Barbell Sit-Up

Abs

Holding a light barbell at arm's length while you sit up adds load to a movement that is usually limited by how many bodyweight reps you can grind out. It trains the hip flexors as well as the abs.

How to do it

  1. Lie on your back with your legs straight and hold a light barbell at arm's length above your chest.
  2. Keep your arms straight and curl your head and shoulders off the floor.
  3. Continue sitting all the way up, so the bar ends over your head with your arms pointing to the ceiling.
  4. Lower your back to the floor under control, keeping the bar above you.

Cues

  • Arms locked
  • Curl up, then sit up
  • Slow on the way down

Common mistakes

  • Swinging the bar forward to get up: it stays over your shoulders the whole time.
  • Dropping back to the floor: the lowering is half the rep.

Swap for: Plate Sit-Up, Cable Crunch

Build a session with Barbell Sit-Up

Obliques, standing rotation

Landmine Twist

Abs

Moving the end of a landmine bar from one hip to the other in an arc makes the obliques turn and stop your torso against a load. Start light; the end of a 45 lb bar alone is enough for most people.

How to do it

  1. Stand facing the free end of a landmine bar and hold it at arm's length at chest height with both hands.
  2. Brace and turn your torso to move the bar in an arc down toward one hip.
  3. Stop it before it pulls you off balance, then bring it back over the top to the other hip.
  4. Pivot slightly on the back foot each way and keep your arms long.

Cues

  • Arms stay long
  • Turn from the trunk
  • Stop the bar each side

Common mistakes

  • Letting the bar drop fast to each hip: control the arc both ways.
  • Bending the elbows to swing it: the movement comes from the torso.

Swap for: Cable Woodchop, Russian Twist

Build a session with Landmine Twist

Squats that make your trunk work

With the bar on your shoulders, your abs, obliques and back muscles have to hold your torso rigid while your legs move. The front squat demands the most from the abs because the bar sits in front of you and tries to fold you forward.

Quads with heavy ab bracing

Front Squat

Quads, Glutes, Adductors

A bar held in front of your shoulders tries to pitch you forward, so your abs work hard to keep your torso upright through every rep. Many lifters feel their abs more on a heavy front squat than on any crunch.

How to do it

  1. Set the bar in a rack at upper-chest height and step under it so it rests on the front of your shoulders, elbows high.
  2. Unrack it, take a step back, and set your feet about shoulder-width apart.
  3. Take a big breath, brace, and squat down with your elbows staying up and your torso upright.
  4. Drive up through your whole foot to standing, breathing out at the top.

Cues

  • Elbows high
  • Brace before you descend
  • Chest stays tall

Common mistakes

  • Elbows dropping as you come up: that lets the bar roll forward.
  • Breathing out at the bottom: hold the brace until you are nearly standing.

Swap for: Barbell Back Squat, Goblet Squat

Build a session with Front Squat

Legs, heavy full-trunk brace

Barbell Back Squat

Quads, Glutes, Adductors

The back squat lets you put the heaviest load on your trunk of any squat, and holding your spine still under it trains the whole core. You do not need extra work for it to count, only a real brace on every rep.

How to do it

  1. Set the bar across your upper back below the neck, hands just outside your shoulders, and unrack it.
  2. Stand with your feet about shoulder-width apart, toes turned out a little.
  3. Breathe in, tighten your stomach as if bracing for a punch, and sit down between your heels.
  4. Stand back up keeping your chest and hips rising together.

Cues

  • Breathe and brace
  • Chest and hips rise together
  • Whole-foot pressure

Common mistakes

  • Hips shooting up first out of the bottom: lighten the bar and keep your chest rising with them.
  • Letting the stomach go soft between reps: re-brace at the top of each one.

Swap for: Front Squat, Box Squat

Build a session with Barbell Back Squat

Legs and trunk, controlled depth

Box Squat

Quads, Glutes, Adductors

Sitting back onto a box teaches you to hold your brace while you pause at the bottom, which is where the core works hardest. The fixed depth also makes it easier to learn the brace before squatting freely.

How to do it

  1. Set a box behind you at about knee height and unrack the bar onto your upper back.
  2. Push your hips back and sit down onto the box without losing tension.
  3. Pause briefly on the box with your stomach braced.
  4. Stand up by driving your feet into the floor.

Cues

  • Stay tight on the box
  • Sit back, not down
  • Drive through your heels

Common mistakes

  • Relaxing onto the box: touch it, do not collapse on it.
  • Rocking back to gain momentum: stand straight up.

Swap for: Barbell Back Squat, Front Squat

Build a session with Box Squat

Hinges for the back side of the core

The lower back is part of the core too. Deadlifts and their variations make the spinal erectors hold your back flat under heavy load, and good mornings load them with the bar on your back. Pick one per session; they share recovery with each other.

Hips and back, heavy brace from the floor

Barbell Deadlift

Glutes, Lower Back

Pulling a heavy bar from the floor makes every trunk muscle hold your back flat at once, and it is the heaviest load most people ever move. A good deadlift brace is a core exercise in itself.

How to do it

  1. Stand with the bar over the middle of your feet and grip it just outside your legs.
  2. Push your hips back until your shins touch the bar and your back is flat.
  3. Breathe in, brace, and push the floor away until you stand up straight with the bar against your legs.
  4. Lower it by hinging your hips back first, then bending your knees once it passes them.

Cues

  • Brace before the pull
  • Bar stays on your legs
  • Flat back all the way

Common mistakes

  • Jerking the bar off the floor: pull the slack out first.
  • Leaning back at the top: stand tall and stop.

Swap for: Trap Bar Deadlift, Rack Pull

Build a session with Barbell Deadlift

Hamstrings and lower back, hinge

Romanian Deadlift

Hamstrings, Glutes

The Romanian deadlift starts from the top and lowers the bar only as far as your hamstrings allow, so your back muscles hold the spine still through a long hinge. It is lighter than a full deadlift and easier to recover from.

How to do it

  1. Hold the bar at your thighs with an overhand grip, standing tall.
  2. Soften your knees and push your hips back, sliding the bar down your thighs.
  3. Lower until you feel a strong pull in your hamstrings, usually just below the knees, keeping your back flat.
  4. Push your hips through to stand back up.

Cues

  • Hips back, not down
  • Bar close to the legs
  • Neutral spine

Common mistakes

  • Rounding your back to reach lower: stop where your hamstrings stop you.
  • Bending the knees more as you go down: keep the same soft bend.

Swap for: Stiff-Leg Deadlift, Good Morning

Build a session with Romanian Deadlift

Lower back and hamstrings, bar on the back

Good Morning

Hamstrings, Glutes

With the bar on your upper back while your torso hinging forward, the lower back muscles hold a long lever. Use a light bar and slow reps; it is a strength builder for the back of the core, not a max-effort lift.

How to do it

  1. Place the bar on your upper back as for a squat and stand with feet hip-width apart.
  2. Soften your knees and push your hips back, letting your torso lean forward.
  3. Lean until your torso is close to parallel or until your hamstrings stop you, with your back flat.
  4. Squeeze your glutes and stand back up.

Cues

  • Hips push back
  • Flat back
  • Light bar, slow reps

Common mistakes

  • Going too heavy too soon: start with an empty bar.
  • Bending the knees deeply so it turns into a squat: keep the knees nearly fixed.

Swap for: Romanian Deadlift, Back Extension

Build a session with Good Morning

Lower back and upper back, partial deadlift

Rack Pull

Glutes, Lower Back, Traps

Pulling from pins set around knee height shortens the deadlift to its top half, so you can hold a heavier bar and train the trunk to stay rigid under it. It is also a way to keep deadlifting if the floor position does not suit you.

How to do it

  1. Set the bar on the safety pins at about knee height and stand close with the bar against your legs.
  2. Hinge to grip it, back flat and shoulders just in front of the bar.
  3. Brace and stand up, pushing your hips forward until you are upright.
  4. Lower it back to the pins under control.

Cues

  • Bar touches your legs
  • Brace hard
  • Hips through at the top

Common mistakes

  • Leaning back at lockout: stand tall and stop.
  • Banging the bar on the pins between reps: set it down.

Swap for: Barbell Deadlift, Romanian Deadlift

Build a session with Rack Pull

Put them together: example sessions

Each session below picks from the exercises above for one situation, with the sets, reps, rest and RIR filled in. Open one in the session builder to change a pick, price it from a recent set, and add it to RIRLift.

Session 1

A barbell and plates at home, no rack

Open in the session builder
  • Workouts2× a week
  • Working sets12 a week
  • Per workout~20 min
  • EquipmentBarbells

You train in a garage with a bar and plates on the floor but no squat rack or landmine.

Without a rack, the lifts that start from the floor are the core builders: the deadlift for the heavy brace, the Romanian deadlift for the lower back, and the rollout and sit-up for direct ab work. Deadlifts sit at 2 RIR so form holds; the RDL at 2; the ab exercises go to 1. Two routines of about 9 sets.

Pull and Abs
ExerciseSets × repsRIRRest
Barbell Deadlift2 warm-up sets firstBrace before every rep. 3 × 3–6 2 3 min
Barbell RolloutFrom your knees. Back flat. 3 × 6–12 1 90 s

Open Pull and Abs in the session builder

Hinge and Abs
ExerciseSets × repsRIRRest
Romanian Deadlift1 warm-up set firstBar slides down the thighs. 3 × 8–12 2 2 min
Barbell Sit-UpLight bar, arms locked. 3 × 8–15 1 75 s

Open Hinge and Abs in the session builder

How to run it
Alternate Pull and Abs and Hinge and Abs, twice a week each or once each in a three-day week.
How to progress
Add 5 to 10 lb to the deadlift when all sets hit the top of the range at 2 RIR. Roll further on the rollout before adding plates; add 5 lb to the sit-up bar at 15 reps.
Open in the session builder

Session 2

Full gym with a rack and landmine

Open in the session builder
  • Workouts2× a week
  • Working sets22 a week
  • Per workout~35 min
  • EquipmentBarbells, Landmine

You train at a gym with racks and a landmine and want core work that also builds strength.

The front squat is the barbell lift that loads the abs most, so it leads, followed by the good morning for the lower back. The landmine twist adds the rotation the big lifts lack and the rollout covers anti-extension. Front squats and good mornings stop at 2 RIR; the twist and rollout at 1. Eleven sets, about 45 minutes.

Squat and Core
ExerciseSets × repsRIRRest
Front Squat2 warm-up sets firstElbows up. Big breath. 3 × 5–8 2 2:30 min
Good MorningLight bar. 3 × 8–12 2 2 min
Landmine TwistPer side. 3 × 8–12 1 75 s
Barbell RolloutShort range is fine. 2 × 6–10 1 90 s
How to run it
Do it once or twice a week as a lower-body and core day.
How to progress
Add 5 lb to the front squat at 8 clean reps on every set. Add a small plate to the landmine when 10 controlled twists per side feel easy.
Open in the session builder

Session 3

Already squatting and deadlifting heavy

Open in the session builder
  • Workouts2× a week
  • Working sets16 a week
  • Per workout~15 min
  • EquipmentBarbells, Landmine

You follow a barbell strength program and your trunk already braces on every main lift. You want 15 minutes of direct core work twice a week.

Your main lifts cover the bracing and the lower back, so this plan skips hinges and squats and trains only what they miss: anti-extension with the rollout, rotation with the landmine twist, and trunk flexion with the barbell sit-up. All three go to 1 RIR, with the rollout and twist in a superset to save time. Eight sets.

Core Finisher
ExerciseSets × repsRIRRest
A1 Barbell RolloutFrom your knees. 3 × 6–12 1 1 min
A2 Landmine TwistPer side. 3 × 8–12 1 1 min
Barbell Sit-UpArms locked. 2 × 10–15 1 1 min
How to run it
Add it after your main lifts on two training days. Skip it on days you test a max.
How to progress
Add rollout range first, then plates. Add reps to the twist and sit-up before going heavier.
Open in the session builder

Make it fit you

Questions

What barbell exercises work the core?

Directly: the barbell rollout, the barbell sit-up and the landmine twist. Indirectly but heavily: front squats, back squats, deadlifts and good mornings, which make your trunk brace against a heavy load.

Do squats and deadlifts work your abs?

Yes, they train the abs and obliques to stay rigid under heavy load, and the front squat does so most. They do not train the abs through a range, so a rollout or sit-up still adds something.

Is the barbell rollout better than an ab wheel?

They train the same thing. A barbell with round plates rolls a little wider and lets you start with a shorter range by using bigger plates. Use whichever you have.

Are barbell core exercises safe for your lower back?

Done with a flat back and a sensible load, they build strength in the muscles that protect your spine. Start light, hold a flat back, and drop any exercise that leaves your back sore for days.

How often should I do barbell core exercises?

Direct ab work two or three times a week, 6 to 10 hard sets total. Heavy squats and deadlifts on top of that count as core training, so you rarely need more.

Do I need a belt for core training?

No. A belt helps you brace on very heavy squats and deadlifts, but your abs and obliques still work hard with one. Learn to brace without a belt before you use one.