The suitcase carry is exactly what it sounds like — pick up a heavy weight in one hand and walk. It's also one of the most direct and underrated core exercises available, and it requires no technique to learn. Here's the honest guide. A suitcase carry loads one side of your body while you walk, forcing your core to resist sideways bending — which trains lateral stability more directly than almost any ab exercise, plus grip and posture as a bonus.
What the suitcase carry trains (the honest mechanics)
Holding a heavy dumbbell or kettlebell in one hand and walking creates an asymmetrical load that's constantly trying to bend you sideways toward the weight. Your core has to resist that, which trains anti-lateral-flexion — specifically the obliques and quadratus lumborum on the opposite side. You also get grip and forearm work (holding heavy weight), trap and upper-back work (keeping your shoulder from being pulled down), and hip stability as you walk. It's the single-sided cousin of the farmer's carry and trains the same direction as the side plank, but under considerably more load.
Why it beats most ab exercises (the honest case)
Here's the argument. Your core's job is largely to resist unwanted movement and transfer force — a function that shows up every time you carry groceries in one hand, hold a child on one hip, or lug a bag through an airport. The suitcase carry trains precisely that, under heavy load, in a standing position, with no spinal flexion. Compare that to crunches, which repeatedly bend a loaded spine to train a function your core performs relatively rarely. And unlike most core work, you can load a suitcase carry heavily and progress it for years. Simple, scalable, and directly transferable.
Proper form (the movement)
Pick up a single heavy dumbbell or kettlebell in one hand — deadlift it up with a flat back rather than bending over sideways to grab it. Stand tall. Then: walk, keeping your torso completely upright and square — do not lean away from the weight to counterbalance, and don't let the weighted side pull your shoulder down or your torso bend toward it. Keep your shoulders level, chest up, and core braced. Walk a set distance or time, set it down safely, then repeat on the other side — always train both sides equally. The cues: stand tall, shoulders level, don't lean, brace, walk controlled.
The lean-and-hike sin (two errors)
Two mistakes remove the training effect. First, leaning away from the weight — counterbalancing with your body position instead of bracing your core, which makes it easy and trains nothing. Second, letting the weighted shoulder drop and the hip hike up, so your torso bends toward the load. The fix for both: use a weight you can carry while staying genuinely upright and level, and consciously resist the pull with your obliques rather than your posture. Honest test: have someone watch from behind, or walk past a mirror — if you're visibly tilted, it's too heavy. A moderate weight carried perfectly upright beats a heavy one carried crooked.
How heavy and how far (practical programming)
Start with something challenging but manageable — many people find one heavy dumbbell they'd struggle to carry for a minute is about right. Practical doses: 20–40 metres per side, or 30–45 seconds per side, for 2–4 sets. Progress by adding weight, distance, or time. Two useful variations: the overhead carry (holding the weight locked out overhead, which adds serious shoulder stability demand) and the front-rack carry (weight at your shoulder). Note that grip often fails before your core does — using straps lets you keep training the target quality, though grip work is a legitimate benefit in its own right.
Where it fits (pair accordingly)
Use suitcase carries as a finisher at the end of a session, or as core work 2–3 times a week. Pair them with the other anti-movement patterns for complete core coverage: Pallof press (anti-rotation), plank and bird dog (anti-extension), side plank (the bodyweight version of this same direction). They also pair naturally with farmer's carries for grip and general conditioning. Progress with progressive overload — this is one of the few core exercises where adding weight is straightforward.
Quick answers
What does a suitcase carry work?
The obliques and quadratus lumborum through anti-lateral-flexion, plus grip, traps, and hip stability.
How is it different from a farmer's carry?
A farmer's carry uses a weight in each hand (balanced); a suitcase carry uses one, creating an asymmetrical core challenge.
How heavy should I go?
Heavy enough to challenge you, light enough to stay completely upright — if you're leaning, it's too heavy.
How far should I carry?
20–40 metres or 30–45 seconds per side, 2–4 sets.
Is it better than crunches?
For training your core's actual stabilising function, yes — and it loads heavily without flexing the spine.
Should I use straps?
If your grip fails before your core, straps let you train the target quality — though grip benefit is real too.
Do I train both sides?
Always — equal distance or time each side.
Carrying something heavy in one hand without tipping over is the most honest core test there is. No technique, no cheating — just your obliques against the weight.
The suitcase carry trains lateral core stability under real load with zero technique to learn: pick up one heavy weight, stand tall, and walk without leaning. Keep your shoulders level, use a weight you can carry genuinely upright, and train both sides equally. It's one of the few core exercises you can progressively overload for years.