The hip hinge in its purest form: dowel test, wall touch, bar path along the legs — with milestones and how to tell a technique fault from too much weight.
The Romanian deadlift — the RDL — is not a deadlift under another name, it is the hip hinge in its purest form: the bar starts at the top, travels down close along your legs until the hamstrings pull, and comes back up. The knees stay almost still; the hips do everything. It is the cleanest teaching skill for the hinge — and the direct precursor to the conventional deadlift.
The honest answer to "how long does it take?": you understand the movement in one session. The feel for where your hips are takes a few weeks — a practical value, not a study figure. It is why so many people's first attempt is a squat with a straight bar.
The question that stalls everyone is the rounded back. No, a few degrees of flexion will not wreck you. A systematic review with meta-analysis found no reliable evidence that greater lumbar flexion while lifting causes back pain [1] — albeit at a low level of evidence and mostly from everyday lifting tasks, not heavy strength exercises. Practically it still means this: in the RDL, the held position is the exercise. If your back rolls, you are no longer training what you set out to train.
And the payoff is real: the stretched end position that feels uncomfortable is exactly the part that counts. Partial reps at long muscle length did about as well as full reps for muscle growth in a meta-analysis (not significantly better), and full range was overall at most slightly ahead [2]. The stretch is not the price of the exercise. It is the exercise.
For context: among competitive strength athletes the rates range from about 0.2 to 7 injuries per 1000 training hours depending on the sport, in powerlifting 1.0 to 4.4, with the lower back/pelvis as the most common site [3].
Dowel on your back, three contact points, knees slightly bent and still, push the hips back until the hamstrings pull. This is not a bend, it is a hinge.
Milestone: 10 reps with no loss of contact and no wobble.
Stand one foot-length in front of a wall and push your hips back until your glutes touch it — without the knees travelling forward. This drill translates "hips back" into something you can feel.
Milestone: 10 touches in a row, shins vertical, back line unchanged.
Dumbbells in front of your thighs, shoulders back, slide the weight down along your legs. Stop at the point where your back would begin to round — not a centimetre lower.
Milestone: 3 sets of 8 at the same depth in every rep, back line unchanged on the side video.
Bar out of the rack or off the floor, lats engaged as if gluing the bar to your legs. Every centimetre of distance lengthens the lever to your lumbar spine (mechanics); in the deadlift, sumo and conventional differ in trunk inclination, among other things [4].
Milestone: 3 sets of 8 with the empty bar, and the bar never loses contact with your legs.
Warm up on the RAMP principle (Raise, Activate, Mobilise, Potentiate — pulse up, activate, mobilise, prime). Long static stretching does not belong before it: stretches of 60 seconds or more reduced maximal force in a systematic review, shorter ones did not [5].
The dosage: heavy loads bring more maximal strength, muscle growth works across a broad range of loads [6]; around 10 working sets per muscle group per week is a common guideline (more volume tended to bring more, there is no threshold) [7], spread across at least two sessions [8]. Closer to failure brought more muscle growth in an exploratory meta-regression, while strength gains were similar across a wide range [9].
Your progression criterion, not your kilo figure: you add load only once every rep of a set shows the same depth and the same back line on video and two reps would have been left in the tank.
The RDL's big advantage: its exit is the simplest of any barbell lift. The bar is never above you and never behind you. If a rep will not go, you let it slide down your legs to the floor or set it back in the rack — under control, in the direction you were already going. What you never do is rescue a failed rep with a jerk from the lower back. Practise setting it down with a light load before you go heavy.
Second, breathing. In a small study of five experienced bodybuilders, mean peak blood pressures of 320 over 250 mmHg were measured during leg press to failure, in one person above 480 over 350 [10], partly caused by the Valsalva manoeuvre — a multiple of your resting value. Brief and, according to the authors, part of the load in healthy people, but not something you drag out over 15 reps. With high blood pressure, heart disease or eye conditions, get medical clearance first.
The RDL is not a dangerous exercise — it is one where you cannot let the position slide. With existing complaints in the spine, hip or hamstrings, the build-up belongs in professional hands.
This guide explains and motivates, it does not replace supervised coaching.
Turn your cue from inside to outside. Instead of "squeeze your hamstrings", think "push the wall behind you away". In meta-analyses across 73 studies with more than 1800 participants (performance) and 40 studies (learning), an external focus of attention outperforms an internal one — a small effect for performance, a medium one for learning, regardless of skill level [11]. Your nervous system organises movement better when you give it a target instead of a muscle instruction.
And the trick that makes depth measurable: stick a strip of tape on your shin at exactly the height where your back line stays clean on video. From then on "deep enough" is no longer a feeling but a mark you hit in every rep.
The direction and the start. The conventional deadlift begins on the floor and pushes you up with your legs; the RDL begins at the top, goes only as deep as your hamstrings allow, and is pure hip work with almost still knees. That is why the RDL is the teaching lift: it isolates exactly the hinge that has to work under full load in the deadlift.
As deep as your back line holds — for most people somewhere between the knee and mid-shin. The floor is not a target. The stretched end position is the valuable part: partial reps at long muscle length did about as well as full range for muscle growth [2]. Mark your depth and hit it the same way every time.
Less than the internet claims — and still not a goal. A meta-analysis found no reliable evidence that greater lumbar flexion while lifting causes back pain [1], albeit at a low level of evidence and from everyday lifting tasks. Practically: in the RDL, the held position is the exercise. If the back rolls you lose tension, control — and the training stimulus you wanted.
By when it happens in the set. If the position breaks in the first rep, it is technique or mobility: less depth and more drilling helps, not less weight. If it breaks only in the final reps, the load was too high or the set too long. Film every working set from the side — you see this distinction instantly on video and never in the mirror.
As orientation, around 10 working sets per muscle group per week [7], spread across at least two sessions [8]. Heavy loads bring more maximal strength, muscle growth works across a broad range of loads [6]. Leave about two reps in the tank in your working sets (practice) — for muscle growth, training closer to failure tended to bring more in a meta-regression, though [9].