Dumbbell Lying Supination

Dumbbell Lying Supination is an intermediate isolation exercise targeting the forearms. It uses dumbbell and is suitable for intermediate trainees.

Intermediate 💪 Forearms Isolation Isolation
3
Sets
12–15
Reps
60 sec
Rest
Isolation
Type
🏋️ Dumbbell
Dumbbell
Forearms Intermediate Isolation
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Muscles Worked

Learn more in the Forearms training guide →

Primary
Forearms
Highlighted muscles

Specialist movement. This is a sport-specific or conditioning drill that we keep for reference. It is not part of our main exercise library or planner. Looking for standard strength exercises? Browse the exercise library.

How To Perform

  1. 1 Lie sideways on a flat bench with one arm holding a dumbbell and the other hand on top of the bench folded so that you can rest your head on it.
  2. 2 Bend the elbows of the arm holding the dumbbell so that it creates a 90-degree angle between the upper arm and the forearm.
  3. 3 Now raise the upper arm so that the forearm is parallel to the floor and perpendicular to your torso (Tip: So the forearm will be directly in front of you). The upper arm will be stationary by your to
  4. 4 As you breathe out, externally rotate your forearm so that the dumbbell is lifted up in a semicircle motion as you maintain the 90 degree angle bend between the upper arms and the forearm. You will co
  5. 5 As you breathe in, slowly go back to the starting position.

Form Cues

  • ✓ Focus on controlled movement throughout each rep.
  • ✓ Maintain proper alignment and avoid compensating with other muscle groups.
  • ✓ Breathe out during the exertion phase of the movement.

Common Mistakes

  • ✗ Using too much weight before mastering the technique.
  • ✗ Rushing through reps — prioritize control over speed.
  • ✗ Not achieving full range of motion on each repetition.
💡 Professor Splits Says:

Progressive overload is the engine of muscle growth. Track your weights and aim to add small increments weekly. For Dumbbell Lying Supination, this means gradually increasing load, volume (sets × reps), or decreasing rest periods over time.

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Where This Exercise Fits

FAQ

How many sets of Dumbbell Lying Supination should I do?▾
3 sets of 12–15 reps is a solid starting point. Adjust based on your training frequency and overall weekly volume for forearms. Beginners should start with the lower end; advanced trainees can push toward the upper range.
What muscles does Dumbbell Lying Supination target?▾
Dumbbell Lying Supination primarily targets the Forearms.
Is Dumbbell Lying Supination good for beginners?▾
Dumbbell Lying Supination is rated intermediate. Beginners should build foundational strength first with simpler movements.
How much rest between sets?▾
For Dumbbell Lying Supination, 60 sec of rest between sets is recommended. Isolation exercises can typically use shorter rest periods (45–90 sec) to maintain the pump and time efficiency.