Dumbbell One Arm Reverse Fly (With Support)

Dumbbell One Arm Reverse Fly (With Support) Exercise Description

The dumbbell one arm reverse fly (with support) trains the posterior deltoid and the scapular retractors in a controlled, unilateral pattern. With the torso supported by the non-working hand, you hinge at the hips and move the arm through horizontal abduction while maintaining a neutral spine. The middle trapezius and rhomboids assist with scapular retraction; the rotator cuff stabilizes the glenohumeral joint. The supported setup reduces body sway and helps you focus on smooth shoulder motion instead of using momentum. Keep the neck long, ribs stacked, and the elbow softly bent so the shoulder drives the movement.

Muscle Groups: Delts, Shoulders
Target Muscles: Deltoid - Posterior
Assisting Muscles: Rhomboid Major, Rhomboid Minor, Trapezius - Middle Fibers
Stabilizing Muscles: Infraspinatus, Subscapularis, Supraspinatus, Teres Minor
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: Male

How To Do The Dumbbell One Arm Reverse Fly (With Support) Exercise

‘- Stand side-on to a bench. Place your non-working hand on the bench under that shoulder for support.
– Set feet hip-width, soften your knees, and hinge at the hips until your torso is near parallel to the floor. Brace your midsection; keep a neutral spine and neck.
– Hold a dumbbell in the working hand with a neutral grip. Let the arm hang below the shoulder; maintain a slight, fixed elbow bend.
– Set the shoulder “down and back” (depress and gently retract the scapula).
– Initiate the lift by moving the upper arm out to the side in a wide arc until it reaches roughly torso level. Do not shrug.
– Pause briefly while keeping the chest and hips square to the floor.
– Lower the dumbbell with control to the start position without letting the shoulder roll forward excessively.
– Keep the torso still throughout—no twisting, swinging, or changing elbow angle.
– Use a comfortable, controlled range of motion while maintaining alignment and smooth scapular movement.

Dumbbell One Arm Reverse Fly (With Support) Tips

‘- Use the bench support with your non-working hand to reduce body sway and focus on smooth shoulder motion instead of momentum.
– Stand with feet hip-width and knees softly bent to create a stable base before hinging.
– Hinge at the hips until your torso is near parallel to the floor, keeping a neutral spine, long neck, and ribs stacked.
– Let the working arm hang straight down from the shoulder with a slight, fixed elbow bend, and keep that elbow angle constant throughout the movement.
– Set the shoulder “down and back” before lifting to depress and gently retract the scapula, and avoid shrugging as you raise the arm.
– Initiate the lift from the shoulder, moving the upper arm out to the side in a wide arc until it reaches about torso level.
– Keep your chest and hips square to the floor during the lift and the pause at the top.
– Pause briefly at the top while maintaining your torso position, neutral spine, and shoulder set “down and back.”
– Lower the dumbbell with control to the start position, preventing the shoulder from rolling forward excessively.
– Keep the torso still—no twisting, swinging, or changing elbow angle—and use a comfortable, controlled range of motion that preserves alignment and smooth scapular movement.

Dumbbell One Arm Reverse Fly (With Support) Beginner Introduction

The dumbbell one arm reverse fly (with support) is a single‑arm dumbbell movement that highlights the rear shoulder and upper back while the other arm props the body on a bench. The torso leans forward from the hips so the working arm can sweep out to the side, roughly in line with the body. A slight bend at the elbow stays consistent, so the shoulder and upper back guide the motion rather than the arm doing the work alone.

Because the non-working hand supports the upper body, the setup minimizes swaying and swinging, encouraging a smooth, steady path for the weight. The rear shoulders, mid‑back, and muscles between the shoulder blades handle most of the effort, while the smaller stabilizers around the shoulder joint contribute to joint control. Throughout the exercise, the spine stays in a natural line, the ribcage and hips face the floor, and the neck remains relaxed, helping the movement feel deliberate instead of rushed or driven by momentum.