Single Arm Dumbbell Row: Form, Muscles, Sets & Reps

The single arm dumbbell row is one of the most effective back-building exercises you can do with minimal equipment. It targets your lats, upper back, and grip while building balanced pulling strength one side at a time.

If you want a thicker back, better posture, and a row variation that's easier to load and feel than many barbell options, this movement deserves a permanent place in your program. It works for beginners learning basic pulling mechanics and for experienced lifters chasing more size and control.

What this exercise works (and why it matters)

The single arm dumbbell row primarily targets the latissimus dorsi, the large back muscles that give your frame width and help pull your upper arm down and back. It also engages the rhomboids, middle traps, rear delts, forearms, and biceps. Because you work one side at a time, your core and obliques must resist rotation.

That matters beyond the gym. A strong unilateral row improves shoulder control, fixes side-to-side strength gaps, and makes other lifts feel more stable. It's also ideal for hypertrophy training because you get a long range of motion and strong mind-muscle connection without heavy barbell loading on your lower back. That said, rows alone shouldn't replace direct elbow-flexor work if arm growth is your goal. Research in the Journal of Strength and Conditioning Research found that direct arm work produced greater elbow flexor hypertrophy than multijoint pulling alone in trained adults.

How to do a single arm dumbbell row (proper form)

1. 1Place your left knee and left hand on a flat bench, with your right foot planted on the floor. Hold a dumbbell in your right hand and let it hang straight down under your shoulder.
2. 2Set your torso nearly parallel to the floor. Keep your spine neutral, chest open, and core tight. Your supporting arm should be firm, not collapsed into the shoulder.
3. 3Start the pull by driving your right elbow up and back toward your hip, not straight out to the side. Think about pulling through your elbow while keeping your shoulders square.
4. 4Bring the dumbbell to the side of your lower ribs or hip crease. Pause briefly at the top and squeeze your lat and upper back without twisting your torso.
5. 5Lower the weight under control until your arm is fully extended. Inhale on the way down, exhale as you row, and repeat for all reps before switching sides.

The best cue for most men is simple: pull your elbow toward your hip. That keeps tension where it belongs and stops the move from becoming a sloppy shrug or biceps curl. For a detailed movement breakdown, see the ExRx exercise database.

Common mistakes (and how to fix them)

Another common issue is a rounded lower back. If your setup feels unstable, widen your stance, brace harder, and use a bench height that lets you keep a neutral spine.

Sets, reps, and programming

The single arm dumbbell row fits almost any upper-body or pull-day plan. Most lifters do well placing it after a heavier vertical pull or as the main back movement in a dumbbell-only session.

For muscle gain, use a load that lets you finish your set with 1–3 reps in reserve while keeping clean form. If your torso starts rotating or your shoulder rolls forward, the set is done. Progress by adding a rep or two first, then increasing the dumbbell weight.

A practical starting point is 1–2 times per week. Pair the movement with pull-ups, pulldowns, chest-supported rows, or rear-delt work for a more complete back session.

Variations and alternatives

FAQ

What muscles do single arm dumbbell rows work?

They primarily work the lats, rhomboids, and middle traps, with support from the rear delts, biceps, forearms, and core. The exact feel changes based on your elbow path and torso position.

How do you do single arm dumbbell rows with proper form?

Brace one hand and one knee on a bench, keep your back flat, let the dumbbell hang under your shoulder, and row by driving your elbow toward your hip. Avoid twisting hard or shrugging at the top.

Are single arm dumbbell rows effective?

Yes. Single arm dumbbell rows are one of the best exercises for building a thicker, stronger back because they let you train each side evenly, use a full range of motion, and focus on control instead of ego weight.

What are the most common single arm dumbbell row mistakes?

The big ones are using too much momentum, rotating the torso, flaring the elbow too high, and dropping the weight on the way down. Clean reps beat heavier sloppy reps every time.

Should I do single arm or double arm dumbbell rows?

Neither is always better. Single arm rows are great for fixing imbalances and improving control. Double-arm rows are efficient for loading both sides at once. Your training goal should decide which fits best.

How often should I do single arm dumbbell rows?

1–2 times per week works well for most lifters. Pair them with other back work like pull-ups or pulldowns. If you're doing them twice weekly, vary the rep range—one session for strength, one for hypertrophy.

The single arm dumbbell row stays popular for a reason: it's simple, scalable, and brutally effective when done well. Lock in your setup, pull with intent, and treat every rep like back practice. Do that consistently, and this one move can help you build a stronger, sharper upper body that carries over well beyond the gym.