Resistance Band Bent-Over Rear Delt Fly
The Resistance Band Bent-Over Rear Delt Fly is a highly targeted isolation exercise designed to activate the posterior deltoids and upper back muscles. This movement is an excellent addition to upper body routines for those aiming to develop balanced shoulders, strengthen postural muscles, and enhance upper body aesthetics. The use of resistance bands introduces constant tension, maximizing muscle fiber engagement throughout the entire range of motion.
Targeted Muscle Groups
Primary Target:
Posterior Deltoids (Rear Delts): Located at the back of the shoulder, these muscles are the main focus. Strengthening the rear delts improves posture, balances shoulder development, and stabilizes shoulder joint.
Secondary Muscles:
Rhomboids: Located between the shoulder blades, these muscles retract the scapulae, aiding in controlled arm movement.
Trapezius (Mid & Upper fibers): Supports scapular stabilization and movement synergy with rear delts.
Rotator Cuff Muscles (Infraspinatus, Teres Minor): Assist in shoulder rotation and joint stability.
Core Stabilizers (Rectus Abdominis, Obliques): Engage to support a stable torso during the bent-over position.
Equipment Needed
Resistance Band: Opt for a loop band or tube-style band with handles. Choose a resistance level that matches your current strength and allows a full range of motion without compromising form.
Anchor Option (Optional): Secure the band under your feet or to a stable object if additional resistance or tension control is desired.
How to Perform the Resistance Band Bent-Over Rear Delt Fly: Step-by-Step Guide
1. Setup
Stand with feet shoulder-width apart.
Position the resistance band securely under your feet.
Grasp the band with both hands using a neutral grip (palms facing each other), ensuring even tension on both sides.
Resistance Band Bent-Over Rear Delt Fly
Illustration credit © Aliaksandr Makatserchyk
2. Assume Bent-Over Position
Hinge at your hips while slightly bending your knees.
Keep your torso nearly parallel to the ground.
Maintain a flat back, tighten your core, and let your arms hang down naturally in front of you.
3. Starting Position
Bring your hands together beneath your chest with elbows slightly bent.
This is the starting point from which each repetition begins.
4. Execution
Inhale and lift your arms outward, forming a wide arc.
Squeeze your shoulder blades together at the top of the movement.
Elbows should remain slightly bent, and shoulders should stay relaxed.
5. Peak Contraction
At the top, arms should be extended out to the sides at shoulder height.
Hold briefly to maximize rear delt contraction and upper back activation.
6. Return
Exhale and lower the arms slowly back to the starting position.
Maintain tension in the resistance band and control throughout the descent.
Recommended Reps and Sets
- For Muscle Strength and Hypertrophy:
- For Endurance and Muscle Tone:
Pro Tips for Maximum Effectiveness
Flat Back Always: Prevent lower back strain by hinging from the hips and engaging your core.
Control Over Momentum: Avoid swinging. Focus on slow, deliberate movement to maximize activation.
Squeeze Scapulae: Actively retract your shoulder blades at the top of each rep to boost rear delt and rhomboid engagement.
Progressive Resistance: Begin with lighter bands. Progressively increase resistance as strength improves.
Common Mistakes to Avoid
Rounding the Back
Increases risk of lumbar strain. Keep your spine neutral and chest open.
Locked or Overextended Elbows
This shifts focus away from the delts and can strain the elbow joints. Keep a soft bend.
Shrugging Shoulders
Elevating shoulders activates the traps more than necessary. Keep your shoulders down and relaxed.
Losing Band Tension
Allowing the band to slacken at the bottom reduces effectiveness. Maintain constant tension throughout each rep.