TETSUBarbell Palms Down Wrist Curl Over A Bench vs Dumbbell Lying Supination
The Barbell Palms Down Wrist Curl Over A Bench and the Dumbbell Lying Supination both train the forearms as their primary muscle. The Barbell Palms Down Wrist Curl Over A Bench uses a barbell while the Dumbbell Lying Supination uses a dumbbell. Here is how they compare and when to pick each.
Side-by-side comparison
| Barbell Palms Down Wrist Curl Over A Bench | Dumbbell Lying Supination | |
|---|---|---|
| Primary muscle | forearms | forearms |
| Body part | lower arms | lower arms |
| Supporting muscles | biceps and brachialis | biceps and shoulders |
| Equipment | barbell | dumbbell |
| Steps in our guide | 5 | 5 |
How each one starts
Barbell Palms Down Wrist Curl Over A Bench — first steps
- Sit on a bench with your feet flat on the ground and your forearms resting on your thighs, palms facing down.
- Hold a barbell with an overhand grip, hands shoulder-width apart.
Dumbbell Lying Supination — first steps
- Lie flat on a bench with your feet flat on the ground.
- Hold a dumbbell in each hand with your palms facing up and your arms fully extended.
Full step-by-step guides are linked below.
Which should you choose?
The Barbell Palms Down Wrist Curl Over A Bench lets you load the heaviest weights and progress in small, steady jumps. The Dumbbell Lying Supination works each side independently and demands more stabilizer control. If your gym has both options, neither is a wrong choice: pick the one that feels strongest through a full range, and swap after 6 to 8 weeks to keep the forearms adapting.
Full form guides
Common questions
Is the Barbell Palms Down Wrist Curl Over A Bench better than the Dumbbell Lying Supination?
Neither is universally better — both train the forearms as the primary mover. The Barbell Palms Down Wrist Curl Over A Bench lets you load the heaviest weights and progress in small, steady jumps, while the Dumbbell Lying Supination works each side independently and demands more stabilizer control. Choose based on your equipment and which movement you can progress consistently.
Can I do both the Barbell Palms Down Wrist Curl Over A Bench and the Dumbbell Lying Supination in the same program?
Yes, but usually not in the same session — they overlap heavily on the forearms. A common setup is one as your main movement and the other on a second training day, or alternating them block by block.
Do the Barbell Palms Down Wrist Curl Over A Bench and the Dumbbell Lying Supination work the same muscles?
The primary muscle is the same: the forearms. Supporting muscles differ slightly — biceps and brachialis for the Barbell Palms Down Wrist Curl Over A Bench versus biceps and shoulders for the Dumbbell Lying Supination.
Track it in Tetsu
Tetsu tracks both movements separately, keeps your PRs per exercise, and tells you which one is actually progressing. Free to start.