Romanian Deadlift

What it is. The Romanian deadlift (RDL) is a hip hinge. Unlike the conventional deadlift (Deadlifts (bent knee)), it starts standing, not from the floor. You lower the bar down your thighs by pushing your hips back, with only a slight, fixed bend at the knees. You stop when your hamstrings are at a long stretch and your back is still in its natural curves, usually somewhere between the knees and mid-shin. Then you push your hips forward to stand. The bar doesn't touch the floor between reps.

What it trains.

• Primary: the hamstrings (biceps femoris long head, semitendinosus and semimembranosus) and gluteus maximus, which extend the hip. Because the knee barely moves, hip extension is the one main action.
• Secondary: the erector spinae, which hold your spine neutral against the forward pull of the bar, and the adductor magnus, which helps extend the hip.
• The quadriceps do far less than in a conventional deadlift, because the knee doesn't straighten from a deep bend.

What the studies show.

• The RDL is one of the strongest hamstring exercises. McAllister et al. (2014) recorded EMG in 12 weight-trained men doing single reps at 85% of one-rep max. Of the leg curl, good morning, glute-ham raise and RDL, hamstring activity was highest in the RDL and glute-ham raise. Semitendinosus was much more active than biceps femoris in every exercise.
• It's quieter for the quads than the conventional deadlift. In a study summarised by Martín-Fuentes et al.'s 2020 systematic review (Lee et al. 2018, 21 men), rectus femoris activity was about 25% in the RDL vs 59% in the conventional deadlift. Gluteus maximus (47% vs 52%) and biceps femoris (57% vs 57%) were similar. The review also reports McAllister's RDL data: semitendinosus activity exceeded both biceps femoris and the erector spinae.
• Hip-hinge exercises favour the long hamstrings. Bourne et al. (2017) compared 10 exercises in 24 men. A 45° hip-extension exercise most selectively activated the biceps femoris long head, while the Nordic curl favoured the semitendinosus. They concluded that hip-extension exercise selectively activates the long hamstrings. The RDL wasn't one of the exercises tested, but it is also a hip-extension movement. Using both a hinge and a knee-flexion exercise covers the whole muscle group.
• Training at long lengths may help growth. Maeo et al. (2021) trained one leg with seated leg curls (hip bent, so the hamstrings are longer) and the other with prone leg curls for 12 weeks. Hamstring volume grew more on the seated side (+14% vs +9%). This was a leg curl study, not an RDL study. It supports the idea that loading the hamstrings at long lengths is worth it, and that's where the RDL is hardest, at the bottom.

EMG shows how active a muscle is, not how much it grows. The growth evidence here comes from Maeo's leg curl trial, and it is applied to the RDL by reasoning, not tested directly.

Technique cues (coaching standards; see Safe Lifting Mechanics):

• Start standing, bar at arm's length, feet about hip width, hands just outside your thighs.
• Soften your knees a little and keep that angle fixed. If your knees keep bending as you go down, it turns into a squat-like deadlift.
• Brace and keep your back in its natural curves from top to bottom.
• Push your hips back as if closing a car door with your backside. The bar slides down your thighs, staying in contact or very close.
• Stop at your range, the point where your hamstrings are fully stretched and your back is still neutral. For many people that's around the knee or upper shin. Lower than that only counts if your back holds.
• Stand by driving your hips forward, and finish tall without leaning back.

The cable pull-through alternative. Stand facing away from a low cable with a rope between your legs, step forward, and hinge so the rope pulls back through your legs. Then drive your hips forward to stand. The hinge pattern is the same: hip extension driven by the glutes and hamstrings, with the erector spinae holding the spine neutral. Because it uses lighter loads and the cable pulls from behind, it's a common way to learn the hinge or add glute and hamstring volume. Research on the pull-through itself is limited; the advice here is based on the shared hinge pattern, not on a direct comparison.

Loading. ACSM 2026 found that strength improved most with full range of motion and heavier loads (at or above 80% of one-rep max), and that muscle growth was greater with 10 or more sets a week per muscle. Training to failure was not needed; finishing sets 2–3 reps short is enough. For the RDL, the range you can control with a neutral back is your full range.

See it. Demo clips in the Fysiqal media library: Romanian Deadlift, Dumbbell Romanian Deadlift, Single-Leg Dumbbell Romanian Deadlift, Cable Pull-Through.

• Anyone building hamstring and glute strength or size.
• Lifters who already squat and want a hinge that loads the back of the legs with less quad involvement.
• Beginners: start with the cable pull-through or a light dumbbell RDL, and move to the barbell once the hinge is consistent.

• Healthy backs and hamstrings. With current back pain, leg pain or numbness, or a recent hamstring strain, get individual advice first.
• Small samples, and mostly EMG. McAllister had 12 men; Bourne 24 men; Maeo 20 adults. EMG shows activation, not growth or injury risk.
• No direct RDL growth trial was used. The long-length growth benefit comes from leg curls (Maeo 2021).
• Range is individual. Hamstring length, not effort, sets how far you can hinge with a neutral back (see Tight Hamstrings as a Cause of Back Problems). Don't chase depth by rounding.

Marcus can't feel his hamstrings in the RDL; he feels it in his lower back.

1. Check: a side-on video shows his knees bending more as he lowers, and his back rounding below the knee.
2. Reset for 3 weeks: cable pull-through, 3 × 12, focusing on pushing his hips back with his knee angle fixed. Then a dumbbell RDL to just below the knee, 3 × 8, 3 s down.
3. Week 4: barbell RDL at 60 kg, 3 × 8, stopping where his back is still neutral. He now feels a strong hamstring stretch at the bottom.
4. Weeks 5–10: he adds 5 kg whenever all 3 sets reach 10 clean reps. Paired with seated leg curls on another day, he's doing about 9 hamstring sets a week.

Next lesson: Barbell Hip Thrust. Train the glutes hardest at the other end of the range, at full hip extension.

• Primary: hamstrings (biceps femoris long head, semitendinosus, semimembranosus) and gluteus maximus. Secondary: erector spinae (isometric) and adductor magnus. Joint action: hip extension; knees stay slightly bent.
• Peak tension is at the bottom, with the hamstrings lengthened.
• Hamstring activity was highest in the RDL and glute-ham raise among four hamstring exercises; semitendinosus was more active than biceps femoris (McAllister 2014).
• RDL vs conventional deadlift: rectus femoris about 25% vs 59%; glute and biceps femoris similar (Lee 2018, via Martín-Fuentes 2020).
• Hip-extension exercise selectively activates the long hamstrings (Bourne 2017).
• Hamstrings grew more when trained at long lengths in leg curls (+14% vs +9%; Maeo 2021).
• Cable pull-through: the same hinge at lighter load, useful for learning the pattern.