DB Rear Delt Fly
Targets the rear deltoids, which are crucial for shoulder health, balanced development, and preventing the rounded-shoulder posture caused by too much...
Difficulty
beginner
Category
strength
Primary Muscles
Shoulders, Upper Back
Equipment
Dumbbells
Form cues
Simple cues for better reps
- Use a load light enough that the target shoulder muscle starts the rep.
- Keep your neck relaxed and avoid shrugging.
- Move through a smooth arc rather than throwing the weight.
- Pause briefly where the target muscle is most contracted.
Common mistakes
What to avoid
Swinging the weight
Reduce load and use a slower tempo with a clear stop between reps.
Shrugging every rep
Keep shoulders away from ears and lead with the elbow or hand depending on the exercise.
Chasing range that irritates the shoulder
Stop in the pain-free range and prioritise tension over height.
How it should feel
Know when your form is on track
Target areas
- The intended delt or upper-back area should burn before anything else.
- The movement should feel controlled rather than heavy.
Good signs
- Tension builds smoothly across the set.
- Your torso stays quiet and your neck stays relaxed.
Warning signs
- Sharp shoulder pain or clicking that gets worse.
- You only feel traps or lower back.
Progressions
Make it easier
- Use cables, bands, or lighter dumbbells for smoother resistance.
- Work one arm at a time if you need better control.
Make it harder
- Add reps before adding much load.
- Use a short pause at peak tension.
Best alternatives
Cable Lateral Raise
Provides smooth tension through the shoulder range.
Face Pulls
Targets rear delts and upper back with shoulder-friendly loading.
How to Perform
- Hinge forward at the hips about 45-60 degrees, or lie face down on an incline bench
- Let dumbbells hang straight down with a slight elbow bend
- Raise arms out to the sides in a wide arc, squeezing your rear delts at the top
- Hold for 1 second at the top
- Lower with control over 2-3 seconds
Tips
- Keep a slight bend in your elbows locked throughout — straightening your arms shifts work to the traps
- No dumbbells? Reverse pec deck, cable reverse flys, or resistance band pull-aparts all hit the rear delts
- Use a slow 2-1-3 tempo (2 up, 1 squeeze, 3 down) — rear delts respond better to control than heavy weight
- Lifting too heavy and using body momentum is the most common mistake — rear delts are small, so go lighter than you think
- Focus on squeezing the muscle at the back of your shoulder — you should feel a burn right behind the shoulder joint
Essential Equipment
| Equipment | Why You Need It | Our Pick | Review |
|---|---|---|---|
| Adjustable Dumbbells | Light weights with fine increments for rear delt isolation | Bowflex SelectTech 552 | Read Review |
Frequently asked questions
Is the DB Rear Delt Fly good for beginners?
Yes, as long as you choose a version and load you can control. Start conservatively, learn the setup, and only progress when the target muscles are doing the work without joint discomfort.
How heavy should I go on the DB Rear Delt Fly?
Use a weight that leaves 1-3 good reps in reserve for most working sets. If your range shortens, momentum increases, or you stop feeling the target muscles, reduce the load.
What can I use if I do not have dumbbells?
Use one of the listed alternatives that trains the same pattern. The exact tool matters less than matching the movement, controlling the rep, and progressing gradually.
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