TETSUBarbell Standing Back Wrist Curl vs Dumbbell Lying Supination
The Barbell Standing Back Wrist Curl and the Dumbbell Lying Supination both train the forearms as their primary muscle. The Barbell Standing Back Wrist Curl 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 Standing Back Wrist Curl | Dumbbell Lying Supination | |
|---|---|---|
| Primary muscle | forearms | forearms |
| Body part | lower arms | lower arms |
| Supporting muscles | biceps and shoulders | biceps and shoulders |
| Equipment | barbell | dumbbell |
| Steps in our guide | 5 | 5 |
How each one starts
Barbell Standing Back Wrist Curl — first steps
- Stand up straight with your feet shoulder-width apart and hold a barbell with an overhand grip.
- Rest the barbell on the back of your hands with your palms facing down and your fingers pointing towards your body.
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 Standing Back Wrist Curl 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 Standing Back Wrist Curl better than the Dumbbell Lying Supination?
Neither is universally better — both train the forearms as the primary mover. The Barbell Standing Back Wrist Curl 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 Standing Back Wrist Curl 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 Standing Back Wrist Curl and the Dumbbell Lying Supination work the same muscles?
Yes — the primary muscle is the same (forearms) and both rely on the same supporting muscles: biceps and shoulders.
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.