Dumbbell Lying One Arm Pronated Triceps Extension

TricepsDumbbellIntermediate
Begin by lying flat on your back on a bench. Hold a dumbbell in one hand with your palm facing down. Extend your arm straight up towards the ceiling. Slowly lower the dumbbell towards your head by bending at the elbow. Keep your upper arm stationary throughout the movement. Stop when your forearm is parallel to the floor. Pause for a moment and then extend your arm back up to the starting position, fully straightening your elbow. Repeat for the desired number of repetitions and then switch arms.

How to perform the Dumbbell Lying One Arm Pronated Triceps Extension

  1. Set up. Set up in a stable, balanced starting position appropriate for the Dumbbell Lying One Arm Pronated Triceps Extension 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 triceps.
  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 triceps 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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