Single Arm Dumbbell Rows

Setting up the bench and pulling cleanly

The single arm dumbbell row setup is what decides whether the lift trains the back or the trunk. Bench position, hand placement and torso angle all matter more than the size of the dumbbell. Walk through each phase before chasing weight.

1. Bench setup

Place a flat bench beside you. Brace the non working knee on the bench and the non working hand on the bench in front of the knee. The body should sit at roughly 45 degrees from vertical or slightly more horizontal. The working side foot stays on the floor for balance.

2. Spine and shoulder position

The spine should be neutral from sacrum to skull. The torso runs parallel to the floor or slightly above. Set the working side shoulder by depressing and slightly retracting the scapula before the row begins. The dumbbell hangs from a fully extended arm at the start.

3. The pull

Drive the elbow back toward the hip, not toward the shoulder. The dumbbell travels to the lower ribs or upper abdomen on the working side. Keep the elbow close to the torso through the rep. The torso stays parallel to the floor and does not rotate during the pull.

4. The peak contraction

Squeeze the shoulder blade in toward the spine at the top of the rep. Hold for one second. The unilateral nature lets the lat shorten more fully than a bilateral row because the dumbbell can travel further back. This is one of the major advantages of the dumbbell version.

5. The descent

Lower the dumbbell under control over two seconds. Allow the shoulder blade to protract slightly at the bottom for the longest possible lat stretch. The torso stays rigid throughout. Reset the shoulder position before the next rep starts.

What single arm dumbbell rows train

The single arm dumbbell row trains horizontal pulling unilaterally with a long stroke and high loading potential. The bench support removes most of the trunk and lower back demand, which lets the back work harder than free standing rows.

Latissimus dorsi (full range)

Primary mover. The unilateral nature and the dumbbell loading allow the lat to work through the longest range of motion of any row variant. The dumbbell can travel from a fully protracted shoulder position at the bottom to a fully retracted and shortened position at the top. This range advantage is the main reason single arm dumbbell rows are so productive.

Middle trapezius and rhomboids

Primary movers at the top of the pull. The mid back is loaded heavily during the peak contraction. The unilateral nature means the working side does not get help from the opposite side, which forces the mid back to do its full share of the work.

Posterior deltoid and teres major

These assist with shoulder extension throughout the rep. Their contribution is meaningful but secondary to the lat. The neutral grip position naturally biases shoulder extension over shoulder horizontal abduction, which keeps the focus on the lat rather than the rear delt.

Biceps and grip

The biceps and brachialis assist with elbow flexion. The neutral grip places the biceps in a moderately strong position. Grip is rarely limiting on single arm dumbbell rows because each hand only holds one dumbbell. Most lifters can complete sets without strap assistance.

Five errors on single arm dumbbell rows

The single arm dumbbell row is forgiving but several errors steal range of motion and load. The most common failures are about trunk position and the elbow path.

Pulling to the chest instead of the hip

Pulling the dumbbell to the chest forces high elbow flare and shifts work to the rear delt. The dumbbell should arrive at the lower ribs or hip line with the elbow close to the torso. This keeps the lat as the primary mover.

Twisting the torso during the pull

Rotating the trunk to throw the dumbbell up reduces the back loading. The torso should stay parallel to the floor throughout every rep. Some lifters use trunk rotation deliberately as a finishing technique on the last reps of a heavy set but this is advanced. Most lifters should keep the trunk stable.

Short range of motion

Stopping the descent before full arm extension leaves out the lengthened position. The single arm dumbbell row specifically allows a longer stroke than barbell rowing. Use it. Allow the shoulder blade to protract at the bottom and let the arm fully extend.

Going too heavy too soon

Most lifters chase load on dumbbell rows because the bench support feels stable. NSCA Essentials recommends loading that allows full range under control. If you cannot complete the prescribed reps with strict torso position and full stroke, drop the weight by 10 percent.

Neglecting the weaker side

Most lifters perform their dominant side first then match the rep count on the weaker side. This trains the imbalance further. Lead with the weaker side and match the dominant side performance to the weaker side. 4 to 8 weeks of this approach typically resolves moderate imbalances.

Sets, reps and where single arm dumbbell rows fit

Single arm dumbbell rows work as a primary or secondary back exercise. They are one of the most consistently productive accessories in any back programme because of the loading potential, low spinal demand and the long range of motion.

Hypertrophy: 8 to 15 reps per side

The productive range. 3 to 5 sets of 8 to 15 reps per side at moderate to heavy dumbbells. Stop 1 to 2 reps short of failure. The total set duration is roughly twice that of a bilateral row because both sides are trained. Pair sides immediately for time efficiency.

Strength: 5 to 8 reps per side

Heavier single arm dumbbell rows build unilateral pulling strength. 3 to 4 sets of 5 to 8 reps per side at the heaviest dumbbell you can row with strict form. Maintain trunk position throughout. Both sides should be trained at the same load.

High volume: 12 to 20 reps per side

Higher rep single arm dumbbell rows work as a finisher after heavier work. 2 to 3 sets at the end of a session. Useful for blood flow, hypertrophy at lower joint stress and for lifters with shoulder issues who cannot tolerate heavier loading.

Frequency

2 to 3 sessions per week is well tolerated. Single arm dumbbell rows recover quickly because the spinal loading is essentially zero and the eccentric stress is moderate. Many balanced programmes include them in every back session.

Programme placement

Place single arm dumbbell rows as a primary back lift on dumbbell focused days or as a secondary lift after compound barbell rowing. They pair well with vertical pulls such as pull ups or pulldowns to cover both pulling patterns within the same session.

More on back training

For the cable based unilateral alternative, our Single arm cable rows guide covers seated cable single arm work. Chest supported dumbbell rows are the bilateral bench supported alternative. And Renegade rows cover the plank position unilateral row variation.