Preacher Hammer Curl

Neutral grip on a preacher pad targets the brachialis under a hard stretch.

Brachialis, Biceps, ForearmsPreacher bench + DumbbellsIntermediate
Animated form guide for the preacher hammer curl — two-pose loop with the brachialis, biceps, forearms highlighted
Worked muscles are highlighted. Loop runs continuously — preacher hammer curl, start to finish.

Setup

  1. Chest on the preacher pad, dumbbells in a neutral grip, arms over the front.
  2. Armpits pinned to the pad.

How To Do It

  1. Curl both bells up keeping the palms facing each other.
  2. Squeeze at the top.
  3. Lower slowly to a fully straight arm.

Breathing

Exhale on the curl.

Common Mistakes

  • Rotating the wrists — neutral the whole way.
  • Cutting the bottom range short.
Coach Sam's cue: Neutral grip, full extension.

Programming It

Sets, reps and rest by training goal
GoalSetsRepsRest
Strength3–54–62–3+ min
Muscle3–48–1260–90 sec
Endurance / Conditioning2–315–2030–45 sec

Why This Exercise Works

Direct elbow flexion builds the biceps and brachialis through a full range under isolated tension.

Where It Fits in a Program

Neutral grip on a preacher pad targets the brachialis under a hard stretch. Train it when you are fresh enough to execute it well — compound work early in a session, isolation and accessory work after. You should have a working base in the underlying pattern before loading this heavily. Add weight only when the current load is genuinely comfortable for all prescribed reps.

Progressing and Regressing It

To progress the preacher hammer curl: move up one increment, or slow the lowering to four seconds. To regress it: drop one increment and add two reps. Change one variable at a time.

Equipment and Substitutions

This version uses a preacher bench and dumbbells. If that is unavailable, choose another exercise training the same muscles from the list below — the pattern matters more than the specific implement.

Related Exercises

Common Questions

What muscles does the preacher hammer curl work?

The barbell back squat primarily trains the legs, glutes, core. The listed muscles are highlighted in the animation above so you can see which tissue is producing the movement rather than guessing from the exercise name.

How many sets and reps should I do?

The preacher hammer curl is accessory work for the brachialis, biceps, forearms, so it goes after your compounds. Three to four sets of ten to fifteen reps, sixty to ninety seconds rest.

What are the most common preacher hammer curl mistakes?

On the barbell back squat, the usual faults are letting the tempo run away on the lowering phase, loading beyond what the legs, glutes, core can control, and cutting the range short at the hardest point of the rep.

Do I need a preacher bench and dumbbells to do this?

This version uses a preacher bench and dumbbells. If you don't have that, use another exercise that trains the brachialis, biceps, forearms through a similar range — the muscles and the movement pattern matter more than the specific piece of equipment.

Is this safe if I have an existing injury?

The preacher hammer curl loads the shoulder and lower back directly, so an existing problem there is the one to watch. If a rep reproduces your pain rather than normal training discomfort, stop and get it assessed. This is general fitness information, not medical advice.

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Form guide for educational purposes — not medical advice. New to training or working around an issue? Apply for coaching and get a plan built for your body.

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