Dumbbell One Arm Reverse Preacher Curl exercise animation (Hombre)

Dumbbell One Arm Reverse Preacher Curl

Músculo objetivo
Brachioradialis
Músculos sinergistas
Biceps Brachii, Brachialis
Equipamiento
Dumbbell
Parte del cuerpo
Forearms
Tipo
Strength

The dumbbell one arm reverse preacher curl is a single-arm forearm and elbow-flexor exercise that primarily targets the brachioradialis, with the biceps brachii and brachialis assisting. Using an overhand (pronated) grip over a preacher bench, it isolates one arm at a time and builds forearm thickness and elbow-flexion strength through a controlled range.

Cómo hacer el Dumbbell One Arm Reverse Preacher Curl

  1. 1Set a preacher bench so the pad sits comfortably under your working arm's armpit and the back of your upper arm rests flat against the angled pad.
  2. 2Pick up a dumbbell in one hand using a pronated (overhand) grip, with your knuckles facing up and your palm facing away from you.
  3. 3Rest the back of your upper arm fully on the pad and let your arm extend down until your elbow is nearly straight, keeping a slight bend to maintain tension.
  4. 4Brace your core and keep your shoulder down; this is your starting position.
  5. 5Curl the dumbbell up by flexing at the elbow, keeping your wrist firm and your knuckles leading the movement.
  6. 6Stop just short of the point where your forearm would relax, squeezing the brachioradialis and forearm at the top.
  7. 7Lower the dumbbell slowly and under control back to the near-straight starting position without bouncing.
  8. 8Complete all reps on one arm, then switch the dumbbell to the other hand and repeat.

Consejos de técnica

  • Keep your wrist neutral and rigid throughout the rep so the brachioradialis and forearm do the work, not your wrist.
  • Move only at the elbow — keep the back of your upper arm pinned to the pad so you can't swing or use your shoulder.
  • Use a slow, controlled lowering phase; the eccentric is where much of the forearm growth happens.
  • Start lighter than you would for a standard curl — the pronated grip is weaker, so ego-loading kills your form.

Errores comunes

  • Letting the wrist bend or curl up instead of staying firm, which steals tension from the brachioradialis and strains the wrist.
  • Lifting the upper arm off the pad to swing the weight, which turns it into a cheat rep and removes the isolation.
  • Using too much weight and only completing partial reps, losing the full stretch and contraction that drive forearm growth.
  • Dropping the dumbbell quickly on the way down, wasting the eccentric and risking elbow strain at the bottom.

Preguntas frecuentes

What muscles does the dumbbell one arm reverse preacher curl work?

It primarily targets the brachioradialis in the forearm, with the biceps brachii and brachialis assisting. The overhand grip shifts emphasis onto the forearm compared with a standard supinated curl.

Why use an overhand grip instead of a normal curl grip?

The pronated (overhand) grip puts the biceps at a mechanical disadvantage, so the brachioradialis and brachialis take on more of the load. That makes it a strong choice for building forearm and elbow-flexor strength.

Why do one arm at a time on a preacher bench?

Training one arm lets you focus on each side independently, fix strength imbalances, and keep strict form. The preacher pad locks your upper arm in place so you can't swing or recruit your shoulder.

How many sets and reps should I do?

Because the brachioradialis responds well to volume, 3 to 4 sets of 10 to 15 reps per arm with a controlled tempo is a sensible default. Use a weight that lets you keep the back of your arm on the pad.

Is the reverse preacher curl good for beginners?

Yes. The preacher pad removes most of the cheating, so it is a beginner-friendly way to learn strict elbow flexion. Start light to master the overhand grip and wrist position before adding load.

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