Dumbbell pronated biceps curl
The dumbbell pronated biceps curl, often called the reverse curl, uses an overhand grip to target the brachioradialis of the forearm and the underlying brachialis muscle. This variation is highly effective for building forearm thickness, improving grip strength, and creating balanced upper arm development.
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- Stand upright with your feet shoulder-width apart, holding a dumbbell in each hand with a pronated (overhand) grip, palms facing your thighs.
- Keep your elbows tucked close to your torso and your shoulders pulled back and down.
- Exhale and curl the dumbbells upward by bending at the elbows, keeping your wrists completely straight and palms facing down throughout the movement.
- Continue lifting until the dumbbells reach shoulder height, squeezing your forearms and upper arms at the peak of the contraction.
- Inhale and slowly lower the dumbbells back to the starting position, maintaining tension and fully extending your arms.
Muscles worked
Form tips
- Keep your wrists rigid and aligned with your forearms; do not let them bend or sag under the weight.
- Pin your elbows to your sides to prevent your shoulders from shifting forward and taking over the movement.
- Use a lighter weight than you would for a standard biceps curl, as the pronated grip places the arm muscles at a mechanical disadvantage.
Common mistakes
- Swinging the body or using momentum from the hips to swing the weights upward.
- Allowing the elbows to drift forward or flare out to the sides during the lifting phase.
- Letting the dumbbells drop quickly during the eccentric (lowering) phase instead of controlling the descent.
FAQ
What muscles does the pronated grip target compared to a standard grip?
The pronated (overhand) grip shifts the mechanical load away from the biceps brachii and onto the brachioradialis (outer forearm) and the brachialis (deep upper arm muscle beneath the biceps).
How many reps and sets should I do for this exercise?
For muscle growth and forearm endurance, perform 3 to 4 sets of 10 to 15 controlled repetitions, focusing on a slow lowering phase.
Is it normal to lift significantly less weight on this variation?
Yes, because the pronated grip puts the primary elbow flexor (the biceps brachii) in a mechanically disadvantaged position, you will typically lift 20% to 30% less weight than a standard supinated curl.
