The B-stance Romanian deadlift primarily works the glutes and hamstrings of the front (working) leg, with secondary demand on the lower back, core, and adductors. It’s essentially a single-leg hip hinge with a kickstand foot for balance, which shifts the majority of the load onto one side at a time. This makes it more targeted than a standard bilateral RDL while being far more stable than a true single-leg version.
Primary Muscles: Glutes and Hamstrings
The B-stance RDL is a hip-hinge movement, so the muscles responsible for extending your hip do most of the work. That means your gluteus maximus (the large muscle shaping your backside) and your hamstrings (running down the back of your thigh) are the primary movers. Because nearly all the load sits on one leg, those muscles work harder per side than they would during a standard two-legged RDL.
Research comparing single-leg deadlifts to bilateral deadlifts helps illustrate why. A study published in the International Journal of Exercise Science found that the single-leg version produced about 18% more activation in the gluteus medius (the muscle on the outer hip) and about 8% more in the biceps femoris (a key hamstring muscle) compared to the conventional deadlift. The gluteus maximus also showed roughly 6% higher activation on the single-leg side, though that difference wasn’t statistically significant. The B-stance RDL falls between these two variations in terms of unilateral demand, so you can expect glute and hamstring activation that’s meaningfully higher than what you’d get from a standard bilateral RDL.
The gluteus medius deserves special attention here. This muscle stabilizes your pelvis when you’re standing on one leg. During a B-stance RDL, the working leg bears most of the load while the rear foot only provides light support, so the gluteus medius on that side has to fire hard to keep your hips level. That makes the B-stance RDL a practical choice if hip stability or glute development is a priority.
Secondary Muscles: Core and Lower Back
Your erector spinae, the muscles running along both sides of your spine, work to keep your back from rounding as you hinge forward. Interestingly, the research noted above found that the bilateral deadlift actually produced higher spinal erector activation than the single-leg version (roughly 10 to 15% more, depending on the side). This makes sense: when you’re lifting heavier loads with both legs, your back has to resist more total force. In a B-stance RDL, the lighter load relative to a bilateral RDL means your lower back isn’t the limiting factor.
Your deep core muscles, including your obliques and transverse abdominis, engage throughout the movement to resist rotation. Because one leg is doing more work than the other, there’s an asymmetric force trying to twist your torso. Controlling that rotation is a real training stimulus for your core, even though you won’t “feel the burn” there the way you would in a plank.
How the B-Stance Compares to Other RDL Variations
Vs. Bilateral RDL
A standard RDL distributes the load evenly across both legs. You can lift heavier total weight, which makes it better for overall posterior chain loading. But because each leg shares the work, neither side gets as much individual stimulus. The B-stance version forces one leg to handle the majority of the load, making it more effective for targeting imbalances between sides and for driving glute and hamstring growth per leg.
Vs. Single-Leg RDL
A true single-leg RDL removes the back foot entirely. This dramatically increases the balance challenge, which limits how much weight you can use. Many people find they spend more energy staying upright than actually loading the target muscles. The B-stance solves this by keeping the rear foot on the ground as a light kickstand. The stability requirement drops significantly, which lets you use heavier loads and keep tension on the glutes and hamstrings rather than losing it to wobble.
Think of the B-stance RDL as occupying the sweet spot: more unilateral stimulus than a bilateral RDL, more loading potential than a single-leg RDL.
Proper Setup and Foot Position
Stand with your working foot flat on the ground and your rear foot staggered back so the toes are roughly in line with the working heel. The rear foot is there for balance only. Keep your weight pressed through the entire working foot, especially the heel and midfoot.
One of the most common mistakes is distributing too much weight onto the back foot. If both legs share the load equally, you’ve turned the exercise into a split-stance bilateral RDL, which defeats the purpose. A useful cue is to imagine the back foot is resting on an egg. It’s touching the ground, but it shouldn’t be bearing meaningful weight. Some people find it helpful to lift the rear heel slightly so only the toes contact the floor, reinforcing that the front leg does the work.
From there, hinge at the hips by pushing them backward while keeping a slight bend in the working knee. Lower the weight until you feel a strong stretch in the hamstrings of the working leg, typically when your torso is roughly parallel to the floor. Drive your hips forward to return to standing, squeezing the glute at the top.
Sets, Reps, and Loading
The B-stance RDL works best in moderate rep ranges. The most popular approach among lifters performing RDL variations is 3 sets of 8 to 12 reps, and that range fits the B-stance version well. Higher reps (10 to 12) are particularly effective for hypertrophy because the sustained time under tension in the stretched position creates a strong growth stimulus for the hamstrings and glutes.
You’ll use less weight than your bilateral RDL since one leg is handling the bulk of the load. Start conservatively. A good benchmark is roughly 50 to 60% of what you’d use for a two-legged RDL, then adjust based on how controlled you can keep the movement. If your torso is rotating or you’re shifting onto the back foot, the weight is too heavy.
Because the B-stance RDL is less fatiguing on the lower back than heavy bilateral deadlifts, it slots well into a program as an accessory movement after your main compound lift. It also works as a primary hip-hinge movement on a lighter training day, where the goal is targeted glute and hamstring work rather than maximal loading.
Who Benefits Most
If you have a noticeable strength or size difference between your left and right glutes or hamstrings, the B-stance RDL lets you address that directly. Training one side at a time ensures your stronger leg can’t compensate for the weaker one, which is exactly what happens during bilateral movements.
Athletes in sports that involve running, cutting, or single-leg landing benefit from the hip stability demands. The movement trains your ability to control pelvic position under load on one leg, which transfers to deceleration and change-of-direction tasks.
For anyone who finds single-leg RDLs frustrating because of balance limitations, the B-stance is a practical alternative that delivers most of the same muscle-targeting benefits without the coordination barrier. You can progressively reduce how much the back foot contributes over time, eventually transitioning to a full single-leg RDL if that’s your goal.