ExercisesStrength Training — Free Weights
Dumbbell Row: A Complete Guide
Also called Single Arm DB Row, One Arm Dumbbell Row
Quick Intro
Dumbbell Row, also called the Single Arm Dumbbell Row, is a strength exercise performed by bracing one hand and knee on a bench, holding a dumbbell in the opposite hand and pulling the elbow up and back past the ribs before lowering it under control. It trains the muscles of the upper back and arm on one side at a time, using a single dumbbell as the only equipment.
Equipment Needed
Dumbbell Row needs Dumbbells, the only required piece of equipment, plus a bench or a similarly stable surface to brace the free hand and knee against. It’s one of the more accessible exercises in free-weight training to set up, since a single dumbbell and any sturdy waist-height surface are all it takes.
Why Dumbbell Row Matters
Pulling the elbow up and back is driven mainly by the upper back: the wide back muscle running from the spine to the arm (latissimus dorsi) does most of the pulling work, while the muscles between the shoulder blades (rhomboids) and the upper back (trapezius) pull the shoulder blade back and down as the elbow rises. A muscle deep in the shoulder (teres major) assists the lat in the same pulling action, and the front of the upper arm (biceps brachii) bends the elbow to help draw the weight in. The forearm does the ongoing work of gripping the dumbbell for the whole set. Muscular strength carries this lift, as a heavy pulling movement should.
When to Do It
Dumbbell Row fits naturally into an upper body or pulling-focused session, often paired with a pressing movement like a bench or shoulder press to balance the front and back of the upper body within the same session. Two to three times a week, on non-consecutive days for the same muscles, gives the back time to recover between sessions.
Anyone with a current shoulder impingement or rotator cuff irritation should approach this cautiously, since the pulling motion loads the shoulder joint directly, and a recent lower back issue is worth noting too, since bracing on a bench in a bent-over position still asks something of the spine even with the support.
Getting Ready
A few shoulder circles and a light band pull-apart or two, if a band happens to be available, warm the shoulder joint before any weight gets involved. Bracing on the bench without a dumbbell yet and rehearsing the pulling motion with just the arm’s own weight previews how the shoulder feels today.
Starting the first working set with a lighter weight than planned, even for just a handful of reps, lets the shoulder settle into the braced position before the heavier sets begin.
Step-by-Step Instructions
1. The setup. Place one hand and the same-side knee on a bench, the other foot planted on the floor, torso close to parallel with the floor.
2. The hang. Let the working arm hang straight down holding the dumbbell, shoulder blade allowed to stretch forward slightly.
3. The pull. Pull the elbow up and back past the ribs, keeping it close to the body rather than flaring out to the side.
4. The squeeze. Pause briefly at the top with the shoulder blade pulled back, then lower the dumbbell under control back to the hang position.
How Many, How Often
Dumbbell Row is dosed per arm, since each side works independently and often manages a slightly different weight depending on which arm is naturally stronger.
| Level | Where you’re at | What to do |
|---|---|---|
| Beginner | New to single-arm pulling | 3 sets of 10 to 12 reps per arm with a light to moderate dumbbell, focused on a still torso and a full pull to the ribs. |
| Intermediate | The torso stays still and the pull reaches the ribs consistently | 3 to 4 sets of 8 to 12 reps per arm with a weight where the last 2 reps of each set are hard while form holds. |
| Advanced | Comfortable pulling heavier loads without torso rotation | 4 sets of 6 to 10 reps per arm, or add a brief pause at the top of each rep to increase time under tension without adding more weight. |
A torso that stays still and square to the floor through the whole set matters more here than the exact weight pulled, since rotating to help the pull along quietly shifts tension off the back muscles this exercise is meant to train.
Modifications and Variations
Dumbbell Row has two alternatives, each a different way to load the same pulling muscles at a similar difficulty.
Barbell Bent Over Row loads both sides at once with a barbell from a hinged bent-over position, shifting emphasis toward the whole back working as one unit rather than each side independently.
Chest Supported Dumbbell Row braces the chest against an inclined bench, removing the need to stabilize the torso at all and letting both arms row together with the lower back fully supported.
Common Mistakes to Avoid
Rotating the torso to add momentum to the pull. Twisting the torso toward the working arm as the weight comes up uses body momentum to move the dumbbell, taking tension off the lats. Keeping the torso square and still, letting the arm do the pulling on its own, is what trains the back muscles.
Letting the elbow flare out to the side. Pulling the elbow out and away from the body shifts emphasis onto the rear shoulder, taking work away from the lats. Keeping the elbow tracking back along the side of the body, brushing close to the ribs, keeps the lats doing the work.
Skipping the stretch at the bottom of each rep. Stopping the descent early and starting the next pull from a partial hang shortens the exercise’s range of motion. Letting the shoulder blade reach forward at the bottom of every rep, within a comfortable range, gets the full benefit of the movement.
After Your Set
A minute of easy shoulder circles and arm swings loosens the joint after a set of focused pulling. Clasping both hands behind the back and lifting the chest gently opens the front of the shoulders and chest, which balances the pulling-dominant work this exercise just demanded. A gentle side bend, reaching one arm overhead, releases the side of the torso that worked to stay still and square through the set.
Going Deeper
Dumbbell Row commonly pairs with a pressing movement, such as a bench or shoulder press, in the same session, since training pulling and pushing together in roughly equal amounts keeps the front and back of the upper body developing at a similar rate over time. It also works well as accessory volume after a heavier bilateral pull like a row or pull-up variation, since the single-arm setup allows focus on the weaker side without the stronger side compensating.
Progress here tends to stall on control rather than raw pulling strength: once the working weight gets heavy enough that a strict, torso-still pull becomes hard to hold, many lifters start borrowing momentum from a slight torso twist without noticing it happening. Dropping the weight back to a level where the pull stays completely strict, then building back up slowly, tends to fix this faster than continuing to push a weight that only works with a rotating torso.
Someone new to this exercise generally finds a stable, still-torso setup within the first session or two, and works up to a working weight where the last couple of reps are hard, on both arms, somewhere in the four to six week range.
How to Know You’re Improving
- A still, square torso through a full set with no visible rotation
- A full pull that reaches the ribs on every rep, not a partial range
- A working weight where the last 2 reps of a set are hard with form intact
- A pulling weight and rep count that feel close to even between the left and right arm
A torso that stays completely still through the whole set, not the number on the dumbbell, is the marker of progress here.
Muscles Worked
- Latissimus Dorsi (the broad muscle across the back, pulling the dumbbell up toward the hip)
- Rhomboids (the muscles between the shoulder blades, retracting the blade at the top of each rep)
- Trapezius (the upper back and neck muscle, keeping the shoulder down as the elbow drives back)
- Teres Major (a small muscle under the shoulder blade, helping bring the upper arm back past the ribs)
- Biceps Brachii (the front of the upper arm, bending the elbow through the pull)
- Forearm Flexors (the forearms, holding a dumbbell that hangs at full stretch at the bottom)
FAQ
Why does one arm always feel weaker than the other on this exercise? A strength difference between sides is common and often goes unnoticed on two-armed pulling exercises, since the stronger side can quietly do more of the work. Training each arm for its own full set of reps closes that gap over time.
What’s the difference between this and a barbell row? Both train the same major back muscles, but a barbell row moves both arms together from a hinged position, while this exercise trains one arm at a time with the opposite side braced on a bench. Many lifters use both in the same program, since each one offers something the other doesn’t.
Is torso rotation during the pull dangerous, or just less effective? It’s more a question of effectiveness than acute danger for most healthy lifters, since it shifts tension away from the back muscles this exercise targets. That said, a heavier weight combined with repeated rotation does add unnecessary twisting load to the spine over time, worth avoiding on both counts.
Can this exercise be done without a bench? A stable, waist-height surface, a sturdy chair or a low box, works as a substitute for bracing the free hand and knee. What matters is that the surface stays stable enough to support bracing pressure.
Related: Chest Supported Dumbbell Row, the same pull with the chest braced on an incline bench.