Back Exercise · Dumbbell
Biomechanical cues verified by the PlanWorkouts Science Review Board under CSCS editorial oversight; see our editorial standards.
The Dumbbell One Arm Bent-Over Row is a compound back movement designed to train the Upper Back with direct engagement of the Forearms.
Sagittal/transverse plane shoulder horizontal extension and scapular retraction. Strengthens upper back, rhomboids, and rear deltoids while demanding lower back stability. Executing this with strict form maximizes muscle fiber recruitment while protecting joint structures.
Quick Exercise Facts
Target Muscle Activation
Bracing one hand and knee on a bench for a single-arm row removes the lower back from the equation almost entirely, unlike a bent-over row with both dumbbells where the spine has to stabilize under load. That support lets the working side pull heavier and more strictly than a bilateral row typically allows. It's one of the more back-friendly ways to build serious upper-back thickness.
How to Do the Dumbbell One Arm Bent-Over Row
- Begin standing with feet shoulder-width apart, gripping a dumbbell in one hand with your palm facing your body.
- Bend your knees slightly and hinge forward at the hips, keeping your back straight and your core braced.
- Let the dumbbell hang straight down toward the floor, arm fully extended.
- Pull the dumbbell up toward your chest, elbow staying close to your body, and squeeze your shoulder blades together.
- Hold briefly at the top, then lower the dumbbell back down under control.
- Continue for the target number of reps, then switch sides.
Recommended Sets & Reps by Training Goal
70–80% 1RM · 90–120s rest
85%+ 1RM · 2–3 min rest (Calc 1RM)
50–60% 1RM · 45–60s rest
Biomechanical & Joint Load Cues
Sagittal/transverse plane shoulder horizontal extension and scapular retraction. Strengthens upper back, rhomboids, and rear deltoids while demanding lower back stability.
Common Mechanical Mistakes & Form Errors to Avoid
- Using Torso Momentum (Jerking): Rocking the upper body aggressively to initiate the pull relies on hip extension rather than the latissimus and rhomboids.
- Incomplete Scapular Retraction: Failing to pull the shoulder blades together at the top cuts off peak contraction of the rhomboids and middle trapezius.
- Flaring Elbows Too Wide: Letting elbows flare 90 degrees shifts mechanical tension away from the lats onto the upper traps and neck.
Proper Breathing Patterns & Core Engagement
Inhale as weight lowers forward. Pull elbows back past torso while exhaling and squeezing shoulder blades together.
Add the Dumbbell One Arm Bent-Over Row to Your Custom Workout Routine
Build a personalized, science-backed workout plan matching your training goals, equipment access, and schedule.
Injury Modification & Joint Safety
For lifters with lower back fatigue, chest-supported incline rows or seated cable rows provide equivalent upper-back hypertrophy without spinal loading. If joint irritation persists, immediately stop and substitute this movement with another exercise from the Back exercises category.
Muscles Worked
The Dumbbell One Arm Bent-Over Row primarily targets the Upper Back, with Biceps as the primary synergist muscle group, along with the Forearms.
More Back Exercises
Alternate Lateral Pulldown
Archer Pull Up
Assisted Parallel Close Grip Pull-Up
Assisted Pull-Up
Assisted Standing Chin-Up
Assisted Standing Pull-Up
More Upper Back Exercises
Back Lever
Band One Arm Standing Low Row
Band One Arm Twisting Seated Row
Barbell Bent Over Row
Barbell Incline Row
Barbell One Arm Bent Over Row
Equipment Alternatives
Don't have dumbbell? These target the same upper back with different equipment.
FAQ
- What muscles does the Dumbbell One Arm Bent-Over Row work?
- The Dumbbell One Arm Bent-Over Row primarily targets the upper back as the primary agonist. Synergist assistance is provided by the biceps along with the forearms. Maintaining strict biomechanical alignment ensures maximal tension remains focused on the intended muscle fibers rather than shifting to surrounding stabilizer joints.
- What equipment do I need for the Dumbbell One Arm Bent-Over Row?
- The Dumbbell One Arm Bent-Over Row is performed using a dumbbell. Ensure all equipment is securely positioned with collars or safety pins locked before loading working sets. If you train in a home gym or minimal setup, explore our equipment-free and resistance band alternatives below.
- What is the most common form mistake on the Dumbbell One Arm Bent-Over Row?
- The most frequent error is using torso momentum (jerking): Rocking the upper body aggressively to initiate the pull relies on hip extension rather than the latissimus and rhomboids.. Controlling the 2 to 3-second eccentric lowering phase ensures maximal hypertrophic stimulus while shielding connective tissue.
- How many sets and reps should I perform on the Dumbbell One Arm Bent-Over Row?
- For muscle hypertrophy and size, aim for 3 to 4 working sets of 8 to 12 repetitions at 70% to 80% of your 1RM with 90 to 120 seconds rest. For absolute strength development, prioritize 4 to 5 sets of 3 to 6 heavier reps with 2 to 3 minutes rest.
- What's a good alternative to the Dumbbell One Arm Bent-Over Row?
- If you don't have access to a dumbbell, the Back Lever targets the same upper back using body weight instead. This alternative replicates the same joint angle and movement plane while allowing you to train effectively with different available gear. You can also substitute it seamlessly in our free Workout Plan Builder.