How is a sumo Romanian deadlift different from a sumo deadlift?

A Barbell Sumo Deadlift starts each rep with the bar on the floor and uses a deep knee bend, so the quads help break it off the ground. The sumo Romanian deadlift starts standing, keeps the knee angle mostly fixed and stops before the bar reaches the floor, which puts the work on the hamstrings and glutes.

How is it different from a regular Romanian deadlift?

The hinge is the same, but the feet are set wide with the toes turned out and the hands grip the bar inside the legs. Many lifters feel more inner-thigh work this way, and some find the wider stance more comfortable on the hips than the narrow stance of the Barbell Romanian Deadlift.

Does the sumo stance train the inner thighs?

Yes, though the stance is not the only reason. The rear part of the adductor magnus works as a hip extensor in any heavy hinge, and a 2026 modeling study of 15 injury-free participants placed both the conventional and the sumo deadlift from the floor in its top tier for force in that part of the muscle. For direct work on the rest of the inner thigh, add an exercise such as the Copenhagen Plank.

How low should the bar go?

Lower it only as far as you can keep your back flat with the knees still over the toes. For most lifters that is around the knees or just below, and it is fine to stop higher if your hamstrings are tight.

Can I use lifting straps?

Yes. Grip often gives out before the hamstrings and glutes on heavier sets, and straps let you hold the same double overhand grip without the bar slipping.

Barbell Sumo Romanian Deadlift

What Is the Barbell Sumo Romanian Deadlift?

Barbell Sumo Romanian Deadlift is a compound exercise that primarily targets the hamstrings and glutes and also engages the adductors, lower back, upper back and grip. It is an intermediate-level movement that combines the hip hinge of the Barbell Romanian Deadlift with a wide, toes-out sumo stance and a grip inside the legs.

Like every Romanian deadlift, it starts from standing and never rests the bar on the floor. You lower the bar under control until the hamstrings reach their stretch, then drive the hips forward to stand. That keeps the posterior chain under tension for the whole set and makes it a strong choice for hamstring and glute strength and size. It usually sits after the main lift of a lower-body session as an accessory, and lifters who pull sumo in powerlifting often use it to train the hinge in the same stance they compete with.

The hamstrings and gluteus maximus do most of the work, extending the hip on the way up and controlling the descent on the way down. The rear part of the adductor magnus helps as a hip extensor, and the erector spinae hold the back flat while the upper back and forearms keep the bar pinned close. Compared with the regular RDL, the wider stance changes the hip angle, and many lifters feel more work through the inner thighs. Compared with the Barbell Sumo Deadlift, there is no pull from the floor and far less knee extension, so the quads contribute much less.

It suits lifters who can already hinge with a flat back and want another posterior-chain option, including those whose hips feel better with the feet wider than in a standard RDL. If the pattern is new, build it first with the Dumbbell Romanian Deadlift or the Kettlebell Sumo Deadlift, then move to the barbell. Focus on feeling the stretch build in the hamstrings as the hips travel back, not on how low the bar goes.

Muscles Worked

MuscleActivation

Biceps Femoris: Primary
Gluteus Maximus: Primary
Semimembranosus: Primary
Semitendinosus: Primary
Adductor Magnus: High
Erector Spinae: High
Flexor Carpi Ulnaris: Medium
Upper Trapezius: Medium
Latissimus Dorsi: Low
Gastrocnemius (Lateral Head): Minimal

Instructions

Set a loaded barbell in a rack at about mid-thigh height, or deadlift it from the floor to get into the start position.
Stand with your feet wider than shoulder width and your toes turned slightly out.
Grip the bar with both palms facing you, hands about shoulder width apart and inside your legs, arms straight.
Stand tall with the bar resting against your upper thighs, chest up and shoulders pulled down and back.
Take a breath, brace your core and soften your knees, pushing them out so they stay over your toes.
Push your hips back and let the bar slide down your thighs, keeping your back flat and your neck in line with your spine.
Keep the knee bend steady as you lower, and stop when your hamstrings are tight and the bar is around or just below your knees.
Drive your hips forward to stand back up, keeping the bar close to your legs.
Finish standing tall with your glutes squeezed, without leaning back, then repeat for the prescribed reps.

Common Mistakes

Squatting the weight down
Bending the knees further and dropping the hips as the bar lowers turns the hinge into a squat and takes tension off the hamstrings and glutes.
Rounding the lower back
Forcing the bar lower than your hamstrings allow makes the lower back round and shifts the load from the hips onto the spine.
Knees caving inward
Letting the knees drift inside the toes in the wide stance strains the knees and groin and loosens the hip position.
Bar drifting away from the legs
Letting the bar swing forward lengthens the lever on the lower back, so keep it sliding down the thighs throughout.
Stance too wide
Setting the feet wider than your hips can control blocks the hip hinge and puts the adductors at risk of a strain.
Leaning back at the top
Pushing the hips through and arching back at lockout compresses the lower spine without adding any glute work.

Injuries

Barbell Sumo Romanian Deadlift is a medium risk exercise when performed with proper technique. The lower back takes the most strain when the spine rounds at the bottom, usually because the lifter chases a deeper range than the hamstrings allow. The hamstrings can be strained by dropping fast into the stretch with a heavy load, and the wide stance can strain the groin or irritate the knees when the knees cave inward or the feet are set wider than the hips can handle.

To prevent problems, set a stance you can hold with the knees tracking over the toes, brace before each rep and keep the bar in contact with the thighs. End each rep where your back stays flat, even if that is above the knees, and lower under control rather than letting the bar fall into the stretch. Warm up with lighter sets so the hamstrings and adductors are ready for the range.

If the barbell version is too demanding, regress to the Dumbbell Romanian Deadlift or the Kettlebell Sumo Deadlift, or narrow the stance and reduce the load. Progress by adding load gradually, slowing the lowering phase or pausing just above the lowest point.

Stop the set if you feel sharp pain in the lower back, a pulling or tearing sensation in the hamstring or groin, or pain, numbness or tingling that runs down a leg. Seek assessment before training through those symptoms.

Overview

Primary Focus: Hamstrings and glutes
Equipment: Barbell
Modality: Strength
Difficulty: Intermediate

Alternative Exercises

Frequently Asked Questions

Q: How is a sumo Romanian deadlift different from a sumo deadlift?: A Barbell Sumo Deadlift starts each rep with the bar on the floor and uses a deep knee bend, so the quads help break it off the ground. The sumo Romanian deadlift starts standing, keeps the knee angle mostly fixed and stops before the bar reaches the floor, which puts the work on the hamstrings and glutes.
Q: How is it different from a regular Romanian deadlift?: The hinge is the same, but the feet are set wide with the toes turned out and the hands grip the bar inside the legs. Many lifters feel more inner-thigh work this way, and some find the wider stance more comfortable on the hips than the narrow stance of the Barbell Romanian Deadlift.
Q: Does the sumo stance train the inner thighs?: Yes, though the stance is not the only reason. The rear part of the adductor magnus works as a hip extensor in any heavy hinge, and a 2026 modeling study of 15 injury-free participants placed both the conventional and the sumo deadlift from the floor in its top tier for force in that part of the muscle. For direct work on the rest of the inner thigh, add an exercise such as the Copenhagen Plank.
Q: How low should the bar go?: Lower it only as far as you can keep your back flat with the knees still over the toes. For most lifters that is around the knees or just below, and it is fine to stop higher if your hamstrings are tight.
Q: Can I use lifting straps?: Yes. Grip often gives out before the hamstrings and glutes on heavier sets, and straps let you hold the same double overhand grip without the bar slipping.