Single Leg Romanian Deadlift: Form and Balance

Single leg RDL muscles worked

Single leg Romanian deadlift muscles worked
Muscle	Job in the movement	Role
Hamstrings (standing leg)	Lengthen under load as you tip forward, then pull you up	Primary
Gluteus maximus (standing leg)	Extends the hip back to standing	Primary
Gluteus medius and minimus	Stop the pelvis from tilting and the knee from caving	Stabiliser, much more than in two leg hinges
Adductors	Help extend the hip and hold the pelvis level	Secondary
Lower back and obliques	Keep the spine neutral and stop the torso twisting	Stabiliser
Foot and ankle muscles	Small corrections to hold balance	Stabiliser

How to do a single leg Romanian deadlift

Stand on one legWeight on the working leg, knee softly bent about 15 to 20 degrees and kept at that angle all the way. Hold the dumbbell in the opposite hand.
Reach the free leg backStart the movement by pushing the free heel towards the wall behind you. The torso tips forward as a result. Think of the back leg and your torso as one rigid piece.
Lower to your hamstring stretchGo down until you feel a strong stretch in the back of the standing thigh, usually with the torso close to parallel to the floor. The weight hangs straight under your shoulder, near the standing shin.
Drive the hip throughPush the floor away with the whole standing foot and bring the hip forward until you stand tall. Tap the free foot down only if you need to reset.

"Belt buckle to the floor." Both hip bones face down at the bottom. If the free hip opens towards the ceiling, you have rotated.
"Toes of the back foot point down." A simple check for the same problem.
"Tripod foot." Big toe, little toe and heel all press into the floor.
"Long neck." Look at the floor a metre or two in front of you, not up.

How to stop wobbling

Balance is the first limit for most people, long before the hamstrings are. Wobbling is normal for the first few sessions and gets better quickly with practice. These fixes help:

Hold onto something. Rest the free hand lightly on a rack, bench or wall. You still train the hinge and the hamstrings, and you can let go once the pattern is solid.
Use a kickstand. The B-stance RDL keeps the toes of the back foot on the floor for balance while most of the weight stays on the front leg.
Go barefoot or in flat shoes. Soft, thick soles make the foot work harder to find stability.
Slow the lowering to 3 seconds. Fast reps give you less time to correct.
Fix your eyes on one point. A spot on the floor ahead of you.

Single leg RDL vs Romanian deadlift

Both are hinges for the hamstrings and glutes, but they do different jobs in a plan. The Romanian deadlift with a barbell lets you load the hamstrings heavily and track strength over years. The one leg version trades load for balance, hip stability and side to side work.

Single leg Romanian deadlift vs barbell RDL
	Single leg RDL	Barbell RDL
Typical load	One dumbbell or kettlebell	Barbell, often heavy
Limit in the set	Balance and hip control	Hamstrings, grip, lower back
Lower back load	Low	Higher
Side glutes	Work hard	Little
Left and right sides	Trained and logged separately	Hidden, the stronger side can help
Best for	Runners, field sports, home training, weaker side	Maximum hamstring strength and size

Many plans use the barbell RDL as the main hinge and the single leg version as an accessory later in the session or on a lighter day.

Dumbbell, kettlebell or bodyweight?

Single leg deadlift variations
Variation	Setup	Why choose it
Bodyweight single leg RDL	Arms out to the sides or reaching forward	Learning the pattern, warm up
Dumbbell, opposite hand	Dumbbell in the hand opposite the standing leg	Standard version, a little more glute medius work
Dumbbell, same side hand	Dumbbell in the hand on the side of the standing leg	Easier to balance for some people
Two dumbbells	One in each hand	Heavier loading once balance is solid
Kettlebell single leg deadlift	Bell hangs from the handle, close to the shin	Compact grip, home training
Landmine single leg RDL	Hold the end of a barbell in a landmine	The bar guides you, so balance limits less
B-stance RDL	Back toes on the floor as a kickstand	A bridge between two legs and one

If you train at home, the single leg version is one of the few ways to get a real hamstring and glute stimulus from one pair of dumbbells. It shows up in most dumbbell leg workouts for that reason. With a single bell, it is also a staple of a kettlebell workout.

Common single leg deadlift mistakes

Opening the hip. The free leg swings out and up to the side. Turn the back toes down and square the hips.
Squatting it. The standing knee bends more and more on the way down. Set the bend at the start and keep it.
Reaching with the arm. The weight drifts forward away from the body and pulls you off balance. Let it hang.
Rounding to go deeper. Stop where your hamstrings stop you, depth comes with time.
Going too heavy too soon. If you need to touch down between reps, the weight is too heavy for now.

Sets and reps for the single leg RDL

Single leg Romanian deadlift programming
Goal	Sets x reps per leg	Rest	Load
Learning	2 x 8 to 10	60 s	Bodyweight or light, hand on a support
Muscle growth	3 x 8 to 12	60 to 90 s between legs	Dumbbell or kettlebell, 3 s lowering
Strength	3 to 4 x 6 to 8	90 s to 2 min	Two dumbbells or landmine
Sport and running	2 to 3 x 6 to 10	60 to 90 s	Moderate, focus on balance

Start with your weaker leg and match its reps on the other side. Good places for it: after squats on a lower day, in a dumbbell glute workout, or as the hinge on a full body day. It pairs well with a knee bending exercise like the nordic hamstring curl or a leg curl.

Gripp

See both legs, side by side

Gripp logs reps and weight for every set, so a weaker side is easy to see over time. It suggests what to lift next session and keeps an estimated max and a progress chart for the exercise.

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How to progress the single leg RDL

Progress in this order: hand support to no support, then reps, then load. Once you can do 3 sets of 12 per leg without touching down, go up one dumbbell size. Dumbbell steps are big compared with the load, so add reps within the range before each jump, which is the method explained in double progression.

Alternatives if it does not suit you: the B-stance RDL, a back extension, a glute bridge on one leg or a regular dumbbell RDL.

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Questions people ask

What does the single leg Romanian deadlift work?

The hamstrings and glutes of the standing leg, with a lot of help from the glute medius, adductors and core to keep you balanced and the hips level.

Which hand should hold the weight in a single leg RDL?

Most people hold it in the hand opposite the standing leg. It challenges hip stability a bit more. Holding it on the same side is fine if balance is the problem.

Is the single leg deadlift the same as the single leg RDL?

In most gyms, yes, both names mean the same movement. A single leg deadlift sometimes means a version with more knee bend that starts from the floor.

Why do I lose balance in single leg RDLs?

Usually the free hip opens, the weight drifts away from your body or the lowering is too fast. Hold onto a support, slow down and keep both hip bones facing the floor.

How heavy should a single leg RDL be?

Much lighter than your two leg RDL. Choose a weight you can control for all reps without putting the free foot down, and finish each set with 1 to 2 reps in reserve.

Single leg Romanian deadlift: balance, hamstrings and form