What you'll gain

• Builds back thickness through the lats and mid-back on each side independently.

• Develops biceps strength alongside the rowing pattern.

• Fixes left-right back imbalances and improves shoulder control.

Step-by-Step Instructions

1. 1

   Place one knee and one hand on a flat bench, with the free foot planted out to the side for balance.

2. 2

   Set the back flat and parallel to the floor, with the hips and shoulders square to the bench.

3. 3

   Hold a dumbbell in the free hand with the arm hanging straight down and the palm facing the bench.

4. 4

   Pull the dumbbell up to the ribs by driving the elbow back toward the ceiling, keeping the elbow tucked.

5. 5

   Squeeze the shoulder blade in toward the spine at the top, with the dumbbell at the lower-rib line.

6. 6

   Lower the dumbbell under control over 2 to 3 seconds back to the fully extended hanging position.

Common Mistakes

• Twisting the torso to throw the dumbbell up, which uses momentum instead of back muscle.

• Letting the elbow flare wide away from the ribs, shifting work off the lats onto the rear delts only.

• Cutting the bottom of the rep short, missing the lat stretch that drives back-thickness growth.

• Letting the working shoulder roll forward at the bottom, risking front-shoulder strain under load.

About This Exercise

The unilateral dumbbell row is the textbook one-arm row performed with one knee and one hand braced on a bench. Removing the lower back from the equation lets the working side pull through a longer, cleaner range of motion than a bilateral row, which makes it one of the best lat- and mid-back builders available. For app builders, this is non-negotiable inventory in any back library. Ship it in every pull-day flow, every back hypertrophy block, and any program that wants to fix left-right back imbalances. It's also one of the most-recognized rowing variations in fitness content, which makes it a strong hero clip for back-training Reels and beginner pull pattern education.

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