Resistance Band Single Arm Fly
Resistance Band Single Arm Fly Exercise Description
The Resistance Band Single Arm Fly (rear-delt emphasis) trains shoulder horizontal abduction using elastic resistance. The movement primarily targets the posterior deltoid, with assistance from the middle trapezius and rhomboids for scapular retraction; the rotator cuff stabilizes the glenohumeral joint throughout. Working one arm at a time promotes precise control of the shoulder complex and helps maintain even tension through a smooth arc. Performed correctly, the trunk stays quiet while the humerus moves around a stable scapula and neutral spine. This variation is joint-friendly when you keep a slight elbow bend, avoid shrugging, and control the return.
- Muscle Groups: Delts, Shoulders
- Target Muscles: Deltoid - Posterior
- Assisting Muscles: Rhomboid Major, Rhomboid Minor, Trapezius - Middle Fibers
- Stabilizing Muscles: Infraspinatus, Subscapularis, Supraspinatus, Teres Minor, Trapezius - Lower Fibers
- Body Area: Upper Body
- Body Parts: Shoulders
- Body Surface: Back
- Body Symmetry: Unilateral
- Equipment: Resistance Band
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Shoulder Extensors
- Joint Involvement: Single-joint
- Muscle Location: Rear Shoulder
- Movement Direction: Horizontal
- Muscle Position: Posterior
- Gender: Female
How To Do The Resistance Band Single Arm Fly Exercise
‘- Anchor the band at mid‑chest height in front of you. Stand tall with a staggered stance, feet planted, ribs down, and core braced.
– Hold the band in the working hand, arm straight ahead at shoulder height, thumb up or neutral grip. Set the shoulder by gently drawing the shoulder blade down and back.
– Keep a slight bend in the elbow and a neutral wrist. Neck long; avoid elevating the shoulder.
– Exhale as you move the arm out to the side in a wide arc (horizontal abduction) until the hand is in line with or just behind the shoulder, without rotating the torso.
– Pause briefly with the shoulder blade retracted; keep the chest quiet.
– Inhale and return along the same path with control, maintaining tension and scapular stability.
– Stop the range before any discomfort in the shoulder or if the shoulder hikes or ribs flare. Adjust your stance to set an appropriate starting tension.
Resistance Band Single Arm Fly Tips
‘- Anchor the band at mid‑chest height and adjust your stance to get appropriate starting tension.
– Stand tall in a staggered stance with feet planted, ribs down, and core braced.
– Start with the working arm straight ahead at shoulder height using a thumb‑up or neutral grip.
– Gently draw the shoulder blade down and back before you start moving the arm.
– Keep a slight bend in the elbow and a neutral wrist throughout the movement.
– Maintain a long neck and avoid elevating or shrugging the shoulder.
– Move the arm out to the side in a wide arc until the hand is in line with or just behind the shoulder, without rotating the torso.
– Keep the chest and trunk quiet as the shoulder blade retracts.
– Return along the same path with control, maintaining band tension and scapular stability.
– Stop the range before any shoulder discomfort or if the shoulder hikes or ribs begin to flare.
Resistance Band Single Arm Fly Beginner Introduction
The Resistance Band Single Arm Fly (rear-delt emphasis) is a band-based pull that highlights the back of the shoulder while also involving the upper back and the smaller muscles that steady the shoulder joint. The band is fixed in front of the body around chest level, and tension comes from drawing one arm outward in a sweeping path at shoulder height. Because only one side works at a time, the movement encourages careful coordination on each rep and helps build awareness of how the arm, shoulder blade, and torso work together.
Throughout the motion, the arm travels in a broad arc while the shoulder blade glides slightly toward the spine and the torso stays tall and steady, with a gentle bend at the elbow. The band’s elastic resistance creates a smooth pull both as the arm moves out and as it returns, rewarding slow, deliberate control. Many lifters appreciate this variation as a shoulder-friendly way to load the rear shoulder and upper back in a controlled range, with an emphasis on clean mechanics rather than heavy resistance.