Romanian Deadlift (RDL): Proper Form Guide

If the conventional deadlift is the king of raw strength, the Romanian deadlift (RDL) is the quiet specialist that builds the muscles which actually move it. Named after the Romanian weightlifters who popularised it as an accessory for their pulls, the RDL is a controlled hip hinge that places a long, loaded stretch on the hamstrings and glutes. It is a movement almost every lifter should own, whether your goal is a bigger deadlift, healthier knees and hips, or simply a stronger backside. The catch is that it is also easy to do badly: the difference between a great RDL and a sore lower back comes down to one idea — hinging at the hips instead of bending at the spine.

This guide breaks the RDL down into its principles: the muscles it trains, the hip hinge that powers it, a clean step-by-step setup, how it differs from its close cousins, and the four mistakes that catch nearly everyone. Groove it light first, then add load the same way you would with any lift — through patient progressive overload.

What is the Romanian deadlift?

The Romanian deadlift is a hip-hinge variation in which the bar is lowered from a standing position by pushing the hips back, rather than being lifted from the floor each rep. The knees stay softly bent at a near-fixed angle, the back stays flat, and the bar travels close to the body down to around mid-shin before you drive the hips forward to stand tall again. Because the bar never rests on the floor, your hamstrings and glutes stay under tension for the entire set, which is exactly what makes the RDL such an effective muscle and strength builder.

Muscles worked

The RDL is a posterior-chain lift, meaning it trains the muscles on the back of your body. The major players are:

• Hamstrings: the prime movers. As you hinge forward, the hamstrings lengthen under load, and they contract powerfully to extend the hips as you stand. This loaded stretch is a key driver of hamstring strength and size.
• Glutes: the gluteus maximus is the main hip extensor and works alongside the hamstrings to drive you back to standing. A hard glute squeeze at the top finishes every rep.
• Spinal erectors: the muscles running up either side of your spine contract isometrically to keep your back flat against the forward-tipping load. This is a major reason the RDL builds a resilient lower back when done well.
• Stabilisers: your lats and upper back keep the bar pinned close to your legs, while your forearms and grip hold the weight throughout the set.

Because it hammers the entire backside, the RDL pairs naturally with the rest of our best leg exercises and complements pulling work in our best back exercises guide.

The hip hinge explained

Everything about the RDL lives or dies on the hip hinge. A hinge is a movement where you bend forward by sending your hips backward while your shins stay almost vertical — the opposite of a squat, where the knees travel forward and the hips drop down. The classic cue is to imagine closing a car door with your backside: you reach back to find the handle, not down. Practise it without weight first. Stand a few centimetres in front of a wall, soften your knees, and push your hips back to tap the wall with your glutes, keeping your back flat the whole time. That backward hip travel — not knee bend — is what lengthens the hamstrings and makes the RDL work.

Step-by-step: how to do an RDL

1. Start from the top. Deadlift the bar off the floor or unrack it from a power rack and stand tall, bar resting on the front of your thighs, feet about hip-width apart.
2. Grip and brace. Take a double-overhand grip just outside your hips. Pull your shoulders down, switch your lats on, take a big belly breath and brace your core as if bracing for a punch.
3. Soften the knees. Unlock your knees to roughly 15–20 degrees and hold that angle. The knees should not keep bending as you go down — this is a hinge, not a squat.
4. Hinge the hips back. Push your hips straight back and let your torso tip forward, keeping your back flat and the bar sliding down close to your legs.
5. Stop at the stretch. Lower to about mid-shin, or the moment you feel a strong hamstring stretch and can't go further without rounding. The bar stays off the floor.
6. Drive the hips forward. Squeeze your glutes and push your hips forward to stand tall. Lock out without leaning back, then re-brace and repeat.

RDL vs conventional vs stiff-leg deadlift

These three lifts look similar but train slightly different things. The table below shows where each one fits:

In short: the conventional deadlift is the big strength lift that starts and ends on the floor; the RDL keeps tension on the hamstrings by never touching down with a slight knee bend; and the stiff-leg version pushes the stretch further with near-straight legs at the cost of more lower-back stress. For a full breakdown of the floor pull, see our proper deadlift form guide.

How low should you go?

The honest answer is: only as low as your hamstring flexibility allows while keeping a flat back. For most lifters that lands the bar around mid-shin, which coincides with a strong stretch through the back of the legs. You are not trying to touch the floor — depth on an RDL is governed by your hamstrings, not the ground. If you have to round your lower back, bend your knees more, or let the bar drift away to go lower, you have already passed your useful range. Over time, as your flexibility improves, your depth will naturally increase. A good warm-up helps here; see our warm-up and cooldown routine before heavy hinge work.

Common mistakes (and fixes)

1. Rounding the lower back

The single most important fault to avoid. As soon as the spine flexes, the hamstrings stop doing the work and the lumbar discs take the strain. Fix: brace harder, keep your chest "long," and stop the rep at the depth where your back is still flat. Film a set from the side — your back should look like a straight ramp, not a curve.

2. Squatting it down instead of hinging

If your knees keep bending and your hips drop straight down, you have turned the RDL into a poor squat and lost the hamstring stretch. Fix: set a soft knee angle at the start and refuse to change it. Drill the hips-back "car door" cue with no weight until the pattern is automatic.

3. The bar drifting away from the legs

When the bar floats forward, it lengthens the lever on your lower back dramatically. Fix: actively engage your lats and think "drag the bar down your thighs." The bar should brush your legs the entire way down and up.

4. Fully locking the knees

Straightening the knees completely turns the RDL into a stiff-leg deadlift, overloading the lower back and limiting how much weight you can safely handle. Fix: keep that small, fixed bend in the knees throughout — the legs stay "soft," never rigid.

Grip and programming

For grip, a double-overhand hold at about shoulder-width works for most sets. Grip is often the first thing to fail on heavier RDLs because the bar stays loaded the whole set; when your hands give out before your hamstrings, use lifting straps so the target muscles decide when the set ends. A mixed grip is best reserved for maximal conventional pulls rather than higher-rep RDLs.

As an accessory lift, the RDL responds well to moderate reps. The NSCA's guidance for hypertrophy-focused training — multiple sets in roughly the 6–12 rep range — fits the RDL perfectly, and the ACE exercise library echoes the same controlled-tempo, flat-back execution. A practical starting point is 3 sets of 8–10 reps with a two-second lowering phase, performed once or twice a week after your main lift. Add small increments only once every rep of every set looks clean — patient loading beats chasing weight you can't hinge cleanly.