Dumbbell One Arm Reverse Fly (With Support)
Dumbbell One Arm Reverse Fly (With Support) Exercise Description
The Dumbbell One Arm Reverse Fly (with support) targets the posterior deltoid while the middle trapezius, lower trapezius, rhomboids, and rotator cuff act as stabilizers. Performed in a hip‑hinged position with the non‑working hand braced on a bench or rack, the support helps you maintain a neutral spine and limit body sway so the shoulder does the work. The movement is shoulder horizontal abduction: the humerus moves out to the side with a slight, fixed elbow bend, while the shoulder blade stays set in gentle depression and retraction. Keep the neck neutral and avoid trunk rotation or shrugging to maintain tension on the rear delt rather than the upper traps. Raise the arm only to shoulder level or in line with the torso, then lower under control—no swinging. This variation is a precise way to groove scapular control and posterior‑shoulder strength with minimal low‑back involvement.
- Muscle Groups: Delts, Shoulders
- Target Muscles: Deltoid - Posterior
- Stabilizing Muscles: Infraspinatus, Rhomboid Major, Rhomboid Minor, Trapezius - Lower Fibers, Trapezius - Middle Fibers
- Body Area: Upper Body
- Body Parts: Shoulders
- Body Surface: Back
- Body Symmetry: Unilateral
- Equipment: Dumbbell
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Shoulder Extensors
- Joint Involvement: Single-joint
- Muscle Location: Rear Shoulder
- Movement Direction: Other
- Muscle Position: Posterior
- Gender: Female
How To Do The Dumbbell One Arm Reverse Fly (With Support) Exercise
‘- Stand side‑on to a bench or rack; place the non‑working hand on it for support.
– Hinge at the hips until your torso is near parallel to the floor; keep a neutral spine and ribs stacked.
– Plant feet hip‑width, knees softly bent, and keep head in line with your spine (eyes to the floor).
– Hold a dumbbell in the working hand with a neutral grip (palm facing your body); wrist straight.
– Set the shoulder: draw it “down and back” lightly without shrugging; brace your midsection.
– With a slight, fixed elbow bend, lift the arm out to the side in an arc driven by the shoulder.
– Stop when the upper arm reaches shoulder height or aligns with your torso; avoid spinal rotation.
– Pause briefly while keeping the shoulder blade stable; do not let it hike toward your ear.
– Lower the dumbbell slowly along the same path until it hangs under the shoulder.
– Maintain control throughout—no momentum, no bouncing, and keep the elbow angle consistent.
Dumbbell One Arm Reverse Fly (With Support) Tips
‘- Brace your non‑working hand on the bench or rack to help maintain a neutral spine and limit body sway.
– Hinge at the hips until your torso is near parallel to the floor, keeping a neutral spine and ribs stacked.
– Plant your feet hip‑width with knees softly bent, and keep your head in line with your spine, eyes toward the floor.
– Hold the dumbbell with a neutral grip and keep your wrist straight throughout the movement.
– Lightly set the working shoulder “down and back” without shrugging before you start lifting.
– Use a slight, fixed elbow bend and lift the arm out to the side in an arc driven by the shoulder.
– Raise the arm only until your upper arm reaches shoulder height or aligns with your torso, avoiding any trunk rotation.
– Keep the shoulder blade in gentle depression and retraction; do not let it hike toward your ear at the top.
– Lower the dumbbell slowly along the same path until it hangs directly under the shoulder.
– Maintain control for the entire rep—no momentum, no bouncing, and keep the elbow angle consistent.
Dumbbell One Arm Reverse Fly (With Support) Beginner Introduction
The Dumbbell One Arm Reverse Fly (with support) is a single‑arm dumbbell movement done in a bent‑over stance while the free hand rests on a bench or rack for balance. This setup lets the rear shoulder drive the motion while the upper back and small shoulder muscles stabilize. With the torso inclined forward from the hips and the chest facing the floor, the arm holding the weight hangs under the shoulder and then sweeps outward in a wide arc. A slight bend in the elbow remains constant, so the shoulder joint becomes the main mover.
Throughout the lift, the shoulder blade stays anchored against the ribcage and moves subtly rather than shrugging toward the ear. The neck and spine line up in a straight, relaxed position, and the body stays quiet so the arm, not momentum, raises the weight. The dumbbell travels only until the upper arm is roughly level with the shoulder or trunk, then returns smoothly to the start. This controlled, supported variation places emphasis on the back of the shoulder and surrounding upper‑back muscles while reducing strain on the lower back.