Lower Arms Exercise · Dumbbell

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Dumbbell Lying Supination

This exercise trains supination — rotating the wrist from palm-down to palm-up — against light dumbbell resistance, a motion involved in everything from turning a doorknob to finishing a curl. It's a narrow, low-load accessory rather than a muscle-building staple, but it rounds out forearm training that curls alone don't fully cover. Control through the rotation matters more than the weight used.

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Also known as: Db Lying Supination, Dumbell Lying Supination

Category

Lower Arms

Equipment

Dumbbell

Target

Forearms

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Exercise reference published by PlanWorkouts; see our editorial standards.

How to Do the Dumbbell Lying Supination

1. Lie back on a bench with your feet planted on the floor.
2. Hold a dumbbell in each hand with your palms facing up and your arms fully extended.
3. Without moving your upper arms, curl the dumbbells toward your shoulders by contracting your forearms.
4. Hold briefly at the top, then lower the dumbbells back down under control.
5. Perform for your targeted rep count, focusing on a deliberate tempo and maximum tension in the forearms.

Technique & Form Tips

Use the movement steps and demonstration for this particular exercise. Match the body position, support points and direction of movement before adding resistance or speed. Holds, cardio movements and lifting exercises need different execution cues.

Common Mistakes to Avoid

• Erratic tempo: Avoid rushing; perform each phase of the movement with deliberate, steady control.
• Copying another exercise setup: Follow this exercise's demonstrated support and body position rather than applying an unrelated lifting cue.
• Losing support: Keep the demonstrated footing, grip or support secure throughout the movement.

How to Breathe During This Exercise

Breathe steadily throughout the movement.

Comfort and Control

Choose a load and range you can control. Stop if the movement causes pain. If discomfort persists, stop and ask a qualified professional about an appropriate exercise and range.

General guidance: Mayo Clinic on weight-training technique. Follow the specific movement steps above for this variation.

Muscles Worked

The Dumbbell Lying Supination mainly targets your Forearms, with your Biceps helping support the movement, along with your Shoulders.

More Lower Arms Exercises

Band Reverse Wrist Curl Band · Forearms Band Wrist Curl Band · Forearms Barbell Palms Down Wrist Curl Over A Bench Barbell · Forearms Barbell Palms Up Wrist Curl Over A Bench Barbell · Forearms Barbell Revers Wrist Curl V. 2 Barbell · Forearms Barbell Reverse Wrist Curl Barbell · Forearms

More Forearms Exercises

Barbell Standing Back Wrist Curl Barbell · Forearms Barbell Wrist Curl Barbell · Forearms Cable Reverse Wrist Curl Cable · Forearms Cable Standing Back Wrist Curl Cable · Forearms Cable Wrist Curl Cable · Forearms Dumbbell Finger Curls Dumbbell · Forearms

FAQ

What muscles does the Dumbbell Lying Supination work?

The Dumbbell Lying Supination mainly works your forearms. It also helps strengthen your biceps and shoulders. Using good, smooth form makes sure you work the right muscles and avoid unnecessary strain on your joints.

What equipment do I need for the Dumbbell Lying Supination?

You do the Dumbbell Lying Supination with a dumbbell. Make sure your equipment is set up safely before starting. If you work out at home or have limited gear, check out our alternative exercises below.

What form mistake should I watch for on the Dumbbell Lying Supination?

One mistake to watch for is erratic tempo: Avoid rushing; perform each phase of the movement with deliberate, steady control.. Use a comfortable range and a controlled return; reduce the load if you cannot maintain the demonstrated setup.

How many sets and reps should I perform on the Dumbbell Lying Supination?

To tone and grow muscle, do 3 to 4 sets of 10 to 15 smooth reps with 60 seconds of rest, focusing on a full stretch and squeezing the muscle at the top of each rep.