Dumbbell Lying One Arm Deltoid Rear

Lie face down on a bench with your torso and forehead supported. Hold a dumbbell in one hand with your arm fully extended towards the floor. Keeping your arm straight, raise the dumbbell towards the ceiling, squeezing your shoulder blade as you lift. Lower the dumbbell back down in a controlled manner. Repeat for the desired number of repetitions and then switch to the other arm.

How to perform the Dumbbell Lying One Arm Deltoid Rear

  1. Set up. Set up in a stable, balanced starting position appropriate for the Dumbbell Lying One Arm Deltoid Rear using your dumbbell.
  2. Brace and execute. Brace your core, control the descent, and move through a full pain-free range of motion while emphasizing your deltoids.
  3. Reset. Reverse the movement under control and reset between repetitions, keeping your form crisp on every rep.

Coaching cues

  • Move with intent — every rep should feel deliberate, not rushed.
  • Drive force through your deltoids rather than momentum.
  • Keep your breathing steady: exhale on the hard part, inhale on the reset.

Common mistakes

  • Using too much weight and losing positional control.
  • Cutting the range of motion short and missing the target muscle.
  • Letting your spine round or hyperextend instead of staying neutral.

Detailed cues, common mistakes, and demonstration video are available in the Fitly app.

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