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Hammer Curl

hammer-curl

isolationhypertrophy

I want you to feel a clean, focused burn along the outer sweep of your arm, not a frantic tug in your shoulders. A great hammer curl keeps your elbows pinned like hinges while your palms face inward, turning each rep into a controlled squeeze that builds resilient grip and balanced bicep thickness. Breathe steadily, move deliberately, and let the weight travel along a quiet, predictable arc.

Steps

  1. 1

    Stand tall with your feet shoulder-width apart and a dumbbell resting in each hand, palms facing inward.

  2. 2

    Draw your shoulder blades gently down and back, keeping your chest proud and your core braced.

  3. 3

    Lock your elbows against your ribs and exhale as you curl both weights upward until your forearms approach your biceps.

  4. 4

    Squeeze the handles tightly at the top, pause briefly, and maintain strict wrist alignment without rolling inward.

  5. 5

    Inhale slowly as you lower the dumbbells along the exact same path until your arms reach full extension.

  6. 6

    Reset your posture, check that your shoulders remain relaxed, and repeat for the prescribed repetitions.

If you're new to this

Start lighter than you think. Your goal here is control, not momentum. Keep your torso completely still; if your back arches or your hips sway forward to heave the weight up, the tension has left the target muscles. You should feel a steady, localized fatigue along the outer bicep and forearm. True failure means you can no longer complete the upward phase with your elbows pinned to your sides. Stop the set the moment your form breaks down, not when you simply feel tired. Beginners often compensate by rolling the wrists into a standard supinated curl or letting the elbows drift forward. Keep your knuckles pointing toward the ceiling throughout the entire range. Rest your shoulders away from your ears, engage your midline, and focus on a smooth, unbroken tempo. Consistent, strict reps will build a stronger, more resilient arm faster than heavy, sloppy swings ever will.

Common mistakes

Most lifters sabotage the hammer curl by swinging their torso to generate momentum, which instantly shifts tension away from the arms and into the lower back. Another frequent error is allowing the elbows to drift forward or flare outward during the ascent, turning an isolated flexion into a messy shoulder-dominant pull. Many also drop the weights too quickly on the descent, missing the eccentric phase where crucial muscle damage and growth occur. Finally, rolling the palms upward mid-rep defeats the entire purpose of the neutral grip, stripping away the brachialis and brachioradialis engagement that makes this variation so valuable. Keep the movement slow, strict, and entirely focused on elbow flexion.

Informational only. Not medical, fitness, or dietary advice. Consult a qualified professional before starting any new programme. Read the safety policy →