ExercisesStrength Training — Free Weights
Romanian Deadlift: A Complete Guide
Also called RDL, Stiff Leg Deadlift
Quick Intro
Romanian Deadlift, often shortened to RDL, is a compound strength exercise performed by standing tall with a loaded barbell, then hinging at the hips to lower the bar down the front of the legs with the knees only slightly bent, before driving the hips forward to return to standing. It trains the hamstrings and glutes through a deep stretch under load, using a barbell as the primary equipment.
Equipment Needed
Romanian Deadlift needs a Barbell, loaded with weight plates to the working load, the one required piece of equipment. Dumbbells work as an optional substitute, held one in each hand instead of a bar, a useful option for anyone without barbell access or working with lighter loads than a barbell realistically allows.
Why Romanian Deadlift Matters
Pushing the hips back to lower the bar lengthens the back of the thighs (hamstrings, both the biceps femoris and semitendinosus) and the seat (gluteus maximus) under tension, then those same muscles drive the hips forward again to stand back up. The lower back (erector spinae) stays braced isometrically the entire time, holding a flat spine as the torso tips forward, while the forearms do the ongoing work of gripping the bar for the whole set. Muscular strength is the main demand, and the long stretch under load asks more of hamstring flexibility than most strength lifts do.
When to Do It
Romanian Deadlift fits naturally into a lower body or posterior chain session, either as the main hip-hinge movement or as heavier accessory work after Barbell Deadlift on a day built around pulling from the floor. Two to three sessions a week, spaced with a recovery day between hard sets, gives the hamstrings enough time to adapt to the stretch-under-load demand this lift creates.
Anyone with a current hamstring strain, a lower back flare-up or a diagnosed disc issue should approach this lift with caution, since it loads the exact tissue a hamstring strain would already have irritated and puts the spine under load in a forward-flexed position. Working with reduced range of motion, lighter load or a different hip-hinge pattern entirely is a reasonable substitute until any of those issues settle.
Getting Ready
A few minutes of easy movement, like walking or light cycling, raises body temperature before the bar gets involved. A couple of standing hamstring stretches and some unloaded hip hinges rehearse the pattern the lift is built around, previewing how the hamstrings feel today before adding any load.
Once the bar is in play, two or three light warm-up sets, each a few reps at a fraction of the working weight, let the hips and hamstrings adjust to the range of motion before the first hard set. Rushing straight into a heavy working set from a cold start is a common way this lift feels tighter and more restricted than it needs to.
Step-by-Step Instructions
1. The setup. Stand tall holding the bar at hip height, feet hip-width apart, a soft bend already in the knees.
2. The hinge. Push the hips straight back, letting the bar travel down the front of the thighs while the knee bend stays roughly the same throughout.
3. The stretch point. Lower the bar until a strong hamstring stretch is felt, usually somewhere between mid-shin and the floor depending on individual hamstring flexibility, keeping the spine flat the entire way down.
4. The drive. Push the hips forward to reverse the motion, squeezing the glutes to finish standing fully upright.
How Many, How Often
Romanian Deadlift is dosed by reps, sets and the weight on the bar, with the working weight chosen relative to how the hamstring stretch feels on a given day.
| Level | Where you’re at | What to do |
|---|---|---|
| Beginner | New to the hip-hinge pattern | 3 sets of 8 to 10 reps with a light weight, one that keeps the spine flat and the knee bend consistent through every rep. |
| Intermediate | The hinge and stretch point stay consistent across a set | 3 to 4 sets of 8 to 10 reps with a weight where the last 2 reps of each set are hard while form holds. |
| Advanced | Comfortable working heavier loads with a full, controlled stretch | 4 sets of 6 to 8 reps at a heavier weight, or add a brief pause at the bottom stretch point to increase time under tension without adding load. |
How low the bar travels matters less here than how flat the spine stays getting there, since rounding the back to chase a few extra inches trades the hamstring stretch for strain higher up the spine.
Modifications and Variations
Romanian Deadlift has one alternative and one harder single-leg step.
As an alternative built around the floor rather than a standing start, Barbell Deadlift pulls the bar from a dead stop on the ground through the full hip and knee extension, a different technique using the same equipment and training many of the same muscles through a longer range of motion.
For more difficulty, Single Leg Romanian Deadlift performs the same hip hinge on one leg at a time, the other leg extending back for balance. Removing the second leg’s support adds a balance and single-leg strength challenge on top of the same hamstring stretch.
Common Mistakes to Avoid
Rounding the lower back to chase extra range of motion. Reaching for a lower bar position past what the hamstrings allow forces the lower back to round to make up the difference, shifting strain away from the hamstrings and into the spine. Stopping the descent the moment a strong stretch is felt, regardless of exact bar height, keeps the load where it belongs.
Letting the knees bend more as the set goes on. A knee bend that increases through a set quietly turns the Romanian Deadlift into something closer to a standard deadlift, taking tension off the hamstrings. Keeping the knee bend fixed and using the hips as the only moving hinge holds the intended stretch.
Losing the flat back at the very bottom of the stretch. The last few degrees of a deep stretch are exactly where the spine is most tempted to round for extra depth. Treating a flat back as a hard stop, not a suggestion, protects the lower back even on a heavy set.
After Your Set
A minute of easy walking settles the heart rate before anything else. Stepping into a low lunge and pressing the front hip forward balances out the hamstring-dominant work this lift just demanded, giving the front of the hip and the quad of the back leg a counter-stretch. Sitting on the floor with the legs extended and reaching gently toward the toes gives the hamstrings a final, gentle release after working through their full stretched range for the whole set.
Going Deeper
Romanian Deadlift often sits as the heavier accessory movement on a leg day built around a squat pattern, or as a dedicated hamstring and glute session on its own, since the deep stretch under load makes it a different stimulus from a squat’s more knee-dominant demand.
Progress here tends to stall for a reason specific to this lift: the hamstrings reach their flexibility limit for the day before the muscles run out of strength, so the bar simply can’t travel any lower without the spine compensating. Working on hamstring flexibility separately, through static stretching or controlled mobility work, tends to unlock more range here faster than adding weight to a set that’s already hitting a length limit.
Someone new to this lift generally learns to feel the hamstring stretch without rounding the back within the first couple of sessions, and works up to a heavier working weight with a consistent stretch point somewhere in the four to six week range as hamstring flexibility and hip-hinge control both improve together.
How to Know You’re Improving
- A hip hinge that reaches a strong hamstring stretch with a flat back on every rep
- A consistent stretch point that doesn’t creep lower or higher across a set
- A working weight where the last 2 reps of a set are hard with form fully intact
- A comfortable transition into Single Leg Romanian Deadlift on light load
A flat back through the deepest point of the stretch, not the exact height the bar reaches, is the marker of progress here.
Muscles Worked
- Biceps Femoris (the outer hamstring at the back of the thigh, lengthening under load as the hips travel back)
- Semitendinosus (the inner hamstring muscle at the back of the thigh, stretched alongside it with the knees nearly straight)
- Gluteus Maximus (the largest glute muscle, pulling the hips forward to stand back up)
- Erector Spinae (the muscles running along the length of the spine, holding a flat back through a long lever)
- Forearm Flexors (the forearms, holding the bar through a slow controlled descent)
FAQ
Why does the Romanian Deadlift feel like such a deep stretch compared to a regular deadlift? The knees stay nearly straight throughout, so almost all of the hip hinge’s range of motion has to come from the hamstrings lengthening rather than the knees bending, unlike Barbell Deadlift, which starts from the floor with the knees already bent. That is why this lift asks more of hamstring flexibility than the standard deadlift does.
How far should the bar travel down my legs? There’s no fixed target, since hamstring flexibility varies a lot between individuals. The cue is a strong hamstring stretch with the spine still flat, wherever that happens to occur, whether that’s mid-shin or close to the floor.
Can beginners use dumbbells for this lift? Yes, dumbbells work for this exercise, one held in each hand. They’re a reasonable choice for anyone without barbell access, though a barbell generally allows heavier working loads once grip and hip-hinge technique are solid.
Is the Romanian Deadlift a good exercise for hamstring flexibility on its own? It builds hamstring length under load, but it’s a strength exercise first, not a dedicated flexibility exercise. Pairing it with static hamstring stretching on non-lifting days addresses flexibility more directly than the lift alone.
Related: Single Leg Romanian Deadlift, the same hinge done on one leg.