Dumbbell Side Plank With Rear Fly

Step 1: Start in a side plank position with your feet together and one forearm on the ground. Step 2: Hold a dumbbell in your free hand and extend your arm straight down towards the ground. Step 3: Keep your body straight and engage your core. Step 4: Lift the dumbbell straight up towards the ceiling, leading with your elbow. Step 5: Squeeze your shoulder blades together as you lift the dumbbell. Step 6: Lower the dumbbell back down towards the ground. Step 7: Repeat the exercise for the desired number of repetitions. Step 8: Switch sides and repeat the exercise with the other arm.

How to perform the Dumbbell Side Plank With Rear Fly

  1. Set up. Set up in a stable, balanced starting position appropriate for the Dumbbell Side Plank With Rear Fly 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 rotator cuff.
  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 rotator cuff 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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