Dumbbell One Arm Pullover on Exercise Ball
- Target muscle
- Pectoralis Major Sternal Head
- Synergist muscles
- Deltoid Posterior, Latissimus Dorsi, Levator Scapulae, Teres Major, Triceps Brachii
- Equipment
- Dumbbell
- Body part
- Chest
- Type
- Strength
The dumbbell one arm pullover on an exercise ball is a single-arm strength exercise that primarily targets the chest (pectoralis major, sternal head), with strong help from the lats, teres major, rear delts, levator scapulae, and triceps. Bridging your hips off an unstable ball while loading just one arm forces your glutes and core to fight rotation, making it as much a stability drill as a chest and back builder.
How to do the Dumbbell One Arm Pullover on Exercise Ball
- 1Sit on the exercise ball holding one dumbbell, then walk your feet forward until only your upper back and shoulders rest on the ball.
- 2Bridge your hips up so your torso is roughly parallel to the floor, and squeeze your glutes to hold a stable tabletop position.
- 3Press the dumbbell straight up over your chest with that arm extended, holding the inner plate with both hands or cupping one end in your palm.
- 4Brace your core and resist any twist toward the loaded side before you begin the rep.
- 5Lower the dumbbell back over your head in a slow arc, keeping a slight bend in your elbow until you feel a stretch across the chest and lat.
- 6Stop when your upper arm is in line with your torso, without letting your hips drop or your shoulder shrug up.
- 7Pull the dumbbell back over your chest along the same arc, squeezing the chest and lat as you return to the start.
- 8Complete all reps on one side, then switch the dumbbell to the other hand and repeat.
Form tips
- Keep your hips lifted and glutes braced for the whole set so your torso stays level instead of sagging on the ball.
- Move slowly and stay anti-rotation: actively resist the pull toward the working arm rather than letting your torso rock.
- Keep a fixed, slight bend in your elbow throughout — the motion happens at the shoulder, not by flexing and extending the arm.
- Use a lighter dumbbell than a two-arm pullover; the single-arm load and unstable ball demand more control.
- Start with the ball against a wall or rack if balancing while reaching overhead feels unsteady.
Common mistakes
- Letting the hips drop as you reach overhead, which collapses the bridge and loses tension on the chest and lats.
- Allowing the torso to twist toward the loaded arm, which shifts work off the target muscles and strains the lower back.
- Bending and straightening the elbow to move the weight, turning the pullover into a triceps movement and shrinking the chest stretch.
- Reaching too far behind the head with a heavy dumbbell, which overstretches the shoulder and risks losing the weight.
- Going too heavy, so you fight the ball for balance instead of controlling a clean stretch and squeeze.
Frequently asked questions
What muscles does the dumbbell one arm pullover on an exercise ball work?
It primarily works the chest (pectoralis major, sternal head), with the lats, teres major, rear delts, levator scapulae, and triceps assisting. Loading one arm on the ball also makes your glutes and core work hard to resist rotation.
Why use one arm instead of both?
A single-arm load pulls your torso toward the working side, so your core and glutes have to fight that rotation. It builds anti-rotation stability and lets you train each side evenly, exposing left-right strength differences.
Is this exercise good for beginners?
It is better suited to lifters who are already comfortable bridging on a ball. Beginners should master a two-arm dumbbell pullover or a bench version first, then add the single-arm ball variation with a light weight.
How many sets and reps should I do?
Three sets of 10 to 12 reps per arm with a controlled tempo works well. Because of the stability demand, favor lighter weight and clean form over heavier loads.
Where should I feel this exercise?
You should feel a stretch across your chest and lat as you reach overhead, then those muscles working to pull the dumbbell back. If you mostly feel your lower back or triceps, lighten the load and keep your hips up.
