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Single-Arm Row Machine: How to Do It, Muscles Worked & Benefits
- Equipe Central Fitnesss
- 2 days ago
- 5 min read
Updated: 6 days ago
The single-arm row machine is a unilateral back exercise that builds strength one side at a time, making it one of the best tools for fixing muscle imbalances and building a thicker, more symmetrical back. Because each arm works independently, you can load each side evenly, improve your mind-muscle connection, and get a longer range of motion than with a standard two-hand row.
In this guide, you'll learn how to do the single-arm row machine with perfect form, which muscles it works, the most common mistakes to avoid, and how to program it for maximum back growth.
Table of Contents
Single-Arm Row Machine: Muscles Worked
The single-arm row is a compound pulling movement that targets the entire back, with an emphasis on the lats.
Muscle | Role |
Latissimus dorsi (lats) | Primary — drives the pull and builds back width |
Rhomboids | Primary — retract the shoulder blade as you pull |
Trapezius (middle and lower) | Primary — stabilize and control the scapula |
Rear deltoids | Secondary — assist in extending the shoulder behind you |
Biceps brachii | Secondary — help pull the handle toward your torso |
Core (abs and obliques) | Stabilizer — prevents rotation of the torso during the unilateral pull |
Erector spinae | Stabilizer — keeps your spine in a neutral position |
Key takeaway: because you train one arm at a time, your core must work harder to prevent your torso from twisting — you get a back workout and an anti-rotation core challenge in one exercise.
How to Do the Single-Arm Row Machine: Step by Step
Set up the machine. Attach a single handle (D-handle) to a low cable pulley, or adjust the seat of the machine row so the handle is at about hip-to-chest height.
Sit down and brace. Place your feet on the footplates (or floor), keep your chest up, and sit tall with a neutral spine. Grip the handle with one hand using a neutral grip (palm facing inward).
Start with your arm extended. Fully extend your working arm toward the machine, feeling a stretch in your lat.
Pull the handle to your torso. Drive your elbow back and close to your body, squeezing your shoulder blade at the end of the movement. Stop when the handle reaches your lower ribs or waist.
Pause briefly at the peak contraction.
Lower slowly and under control until your arm is fully extended again — keep tension on the muscle, don't let the weight stack drop.
Complete all reps on one side, then switch arms.
Breathing: exhale as you pull; inhale as you lower.
Common Mistakes to Avoid
❌ Rotating your torso. The #1 mistake — swinging your body turns a row into a cheat movement and reduces back activation. If you can't keep your torso still, use less weight.
❌ Using momentum. Jerking the handle with your body instead of pulling with your back and arms kills the stimulus.
❌ Pulling too high. Aim for your lower ribs/waist, not your chest — pulling too high shifts work to the shoulders and traps.
❌ Flaring your elbow out. Keep your elbow close to your body to maximize lat and mid-back engagement.
❌ Rushing the eccentric. Dropping the weight on the way down loses half the exercise's muscle-building potential. Control the lowering for 2–3 seconds.
❌ Rounding your shoulders forward at the start of the rep. Keep your chest proud and shoulder blades back.
Benefits of the Single-Arm Row Machine
Fixes muscle imbalances. Training one side at a time ensures both sides of your back get equal work, correcting asymmetries that bilateral rows can hide.
Better mind-muscle connection. With one arm, you can focus entirely on squeezing the lat and mid-back — most lifters report feeling their back far more than with two-hand rows.
Longer range of motion. A single arm can stretch further forward and pull further back than both arms together, which means more time under tension for the muscle.
Improved core stability. Your core must resist rotation on every rep, building anti-rotation strength that transfers to squats, deadlifts, and daily life.
Safer for the lower back. Because you can brace with one hand on the machine (in the dumbbell version) or sit supported (cable version), there's less spinal stress than with heavy barbell rows.
Variations to Try
Single-arm cable row (seated) — the classic version; constant tension throughout the movement.
Single-arm dumbbell row — done bent over with one hand on a bench; great for a deep stretch and heavy loading.
Machine unilateral row (plate-loaded or selectorized) — the version this guide focuses on; stable, easy to load, and beginner-friendly.
Single-arm band row — home-friendly version using a resistance band anchored at chest height.
Meadows row — an advanced landmine variation that hits the lats from a unique angle.
Related: pair the single-arm row with pull-ups or lat pulldowns for a complete back day.
Programming the Single-Arm Row Machine
Sets & reps for strength: 4–5 sets of 6–8 reps per arm with heavier loads.
Sets & reps for hypertrophy: 3–4 sets of 10–15 reps per arm.
Frequency: 1–2 times per week on pull/back days.
Placement in the workout: after heavy compound pulls (pull-ups, deadlifts), or as the main horizontal-pull exercise of the day.
Pro tip: always start with your weaker side first — match the stronger side's reps and load so both sides grow evenly.
FAQ
What's the difference between a single-arm row machine and a cable row?
The single-arm version trains one side at a time with a neutral grip, which corrects imbalances and gives a longer range of motion. A standard cable row uses both arms simultaneously, which is better for moving heavier loads overall.
Is the single-arm row good for building back width?
Yes. The lats are the primary mover, so heavy, controlled single-arm rows build back width effectively — especially when combined with vertical pulls like pull-ups.
How much weight should I use?
Start with a weight you can control for 10–15 reps per arm with perfect form. Increase load once you can complete all sets with a stable torso and full range of motion.
Can beginners do the single-arm row machine?
Absolutely. The machine version is stable and easy to set up, making it one of the most beginner-friendly back exercises. Start light and focus on form.
Does the single-arm row work the biceps?
Yes, the biceps assist the movement, but the primary target is the back (lats, rhomboids, traps). If you want to emphasize biceps, finish with dedicated curl variations.
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