Romanian deadlift: the hinge that builds hamstrings
Start standing, soften the knees about 15–20° and hold that angle, push your hips back while keeping the bar against your legs, and stop when you feel a strong hamstring stretch or your back would start to round — usually mid-shin. Then drive the hips forward to stand.
What makes it different
The Romanian deadlift is a hip hinge with a fixed knee angle, performed top-down. That combination is what makes it the best hamstring builder available to most people — the hamstrings stay under tension through a long range because the knee never straightens or bends much.
| Romanian deadlift | Conventional deadlift | Stiff-leg deadlift | |
|---|---|---|---|
| Starts | At the top, standing | On the floor | On the floor or top |
| Knees | Soft, roughly 15–20° bend, held | Bend and extend | Almost straight |
| Range ends | Mid-shin, or where the back would round | Floor | Floor |
| Main target | Hamstrings and glutes | Whole posterior chain and quads | Hamstrings, longest range |
| Typical load | 50–70% of deadlift | Heaviest | Lighter than RDL |
| Best for | Hamstring hypertrophy | Maximal strength | Advanced hamstring work |
The distinction from a conventional deadlift matters practically: an RDL is not a deadlift done badly with stiff legs. It is a separate exercise with a different purpose and a much lighter load.
Technique
- Start standing with the bar at hip height — from a rack, or by deadlifting it up first.
- Grip at shoulder width, bar against your thighs. Straps are useful here; grip should not be the limit.
- Soften the knees 15–20° and hold that angle for the whole rep. This is the technical crux — the knees neither straighten nor bend further.
- Brace, chest proud, shoulder blades set.
- Push the hips back as if closing a door behind you. The bar drags down your thighs.
- Keep the bar in contact with your legs. Any forward drift turns it into a lower-back exercise.
- Descend until you feel a strong hamstring stretch or until your back would round — for most people around mid-shin, sometimes just below the knee.
- Drive the hips forward to stand up. Do not pull with the lower back.
- Stop at standing. No lean-back at the top.
Range is determined by your hamstrings, not by the floor. Someone with excellent hamstring flexibility may reach their toes; someone else stops at the knee. Both are correct. Going lower by rounding your back adds nothing but risk.
Faults and fixes
- Squatting instead of hinging. Knees bending progressively as you descend. Fix by setting the knee angle and holding it — film from the side to check.
- Bar drifting away from the legs. The most common and most costly fault. Keep it in contact.
- Rounding the lower back to go lower. Stop earlier. The range is what your hamstrings allow with a flat back.
- Straight, locked knees. That is a stiff-leg deadlift — harder on the lower back and less hamstring-specific.
- Too much weight. The single biggest cause of every other fault. An RDL should be substantially lighter than your deadlift.
- Hyperextending at the top. Stand up and stop.
- Rushing the descent. The lowering phase is where the hamstring work happens. Two to three seconds down.
Programming
- Hypertrophy: 3–4 sets of 8–12, controlled two-to-three second descent.
- Strength: 3–4 sets of 5–8.
- Twice a week is well tolerated.
- Expect delayed soreness when you start — RDLs load the hamstrings at long lengths, which is the pattern that produces the most soreness. Start with two sets — see delayed onset muscle soreness.
- Pair with a leg curl. RDLs train the hamstrings at the hip; leg curls train them at the knee. Both are needed — see leg curl.
- Use straps so grip does not cap the load.
Variations
- Dumbbell RDL. Easier to learn, and dumbbells can pass either side of the legs.
- Single-leg RDL. Excellent for balance and for addressing side-to-side differences. Much lighter loads.
- B-stance RDL. One foot slightly back as a kickstand. Most of the single-leg benefit with far less balance demand — a good middle option.
- Deficit RDL. Standing on a plate for more range, if your flexibility allows.
- Trap bar RDL. More comfortable grip position.
- Cable or band RDL. Constant tension, good for learning the movement.
Common questions
How low should I go?
Until you feel a strong hamstring stretch or your back would round. Usually mid-shin. Not to the floor.
Should the bar touch the floor?
No. This is a top-down exercise and the range is set by your hamstrings.
How much should I use?
Typically 50–70% of your conventional deadlift. Start much lighter than you expect.
Why does my lower back get tired instead of my hamstrings?
Almost always the bar drifting forward, or too much weight. Both are fixed by lightening the load.
How bent should my knees be?
15–20°, and held constant throughout.
RDL or leg curl for hamstrings?
Both. They train different functions of the same muscle group.
Why am I so sore after these?
Loading a muscle at long lengths produces the most soreness. It settles within a few weeks.
The practical version
- Start standing; soften the knees 15–20° and hold that angle throughout.
- Push the hips back, bar dragging against the legs at all times.
- Stop at a strong hamstring stretch or before the back rounds — usually mid-shin.
- Drive the hips forward to stand; no lean-back at the top.
- Use 50–70% of your deadlift, and control the descent over two to three seconds.
- Pair with leg curls, and expect real soreness for the first few weeks.
Key takeaways
- The RDL is a hinge with a fixed 15-20° knee angle held throughout the rep.
- The bar must stay in contact with the legs — drift turns it into a lower-back exercise.
- Range is determined by your hamstring flexibility, not by reaching the floor.
- Load is typically 50-70% of your conventional deadlift.
- Lower-back fatigue instead of hamstring work means bar drift or too much weight.
- Pair with leg curls: RDLs train the hamstrings at the hip, curls at the knee.
Related reading
General information, not medical or individualised advice. Speak to a doctor before starting a new programme, especially if you have a medical condition, are pregnant, or are returning from injury. If you train with a coach, their guidance takes precedence.
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