How many reps of the hammer preacher curl should you do per arm when you are new to the exercise?

Start with 3 sets of 10 reps per arm at a weight that keeps the grip neutral the whole way. Once the wrist stops drifting toward supination on its own, add weight.

What can replace the hammer preacher curl with no preacher bench?

Standing hammer curls with dumbbells or a neutral-grip resistance band curl both train the brachioradialis without needing the bench.

What is the hammer preacher curl good for, and when should you skip it?

It builds the brachioradialis for forearm thickness and elbow-flexor strength alongside the biceps long head. It's a poor choice if grip or forearm fatigue is already your limiter that week, since it compounds fatigue rather than allowing recovery.

Intermediate

Hammer Preacher Curl

Bracing a neutral-grip curl on the preacher pad marries the hammer curl's brachioradialis emphasis with the preacher bench's total elimination of momentum, so the forearm and long head get strict, focused overload. The fixed upper arm makes it one of the cleanest ways to blast the brachioradialis without swing. Use it as an accessory when you want thicker forearms and a fuller lower biceps.

Equipment: Bench, Dumbbell
Body part: Biceps, Forearms
Type: Strength
Browse by muscle: Brachioradialis, Biceps Brachii Long Head
Browse by movement: Elbow Flexion

How to do it

1
Set the preacher pad so its top edge sits just under your armpit.
2
Rest the back of one upper arm on the pad and hold a dumbbell with a neutral, thumb-up grip.
3
Let the arm extend to nearly straight at the bottom of the pad.
4
Curl the dumbbell toward your shoulder while keeping the neutral grip.
5
Squeeze at the top, then lower slowly until the arm is almost straight, and switch arms.
6
Exhale as you curl, inhale as you lower.

Tips

Do not rotate the wrist; keeping it neutral is what targets the brachioradialis.
Keep the upper arm flat on the pad instead of letting the elbow lift as you tire.
Never bounce out of the stretched bottom; control that near-straight position.

Variations

Common mistakes

The wrist quietly rotates toward palm-up as the set gets hard, sliding the exercise back toward a normal curl instead of staying neutral.
Squeezing the dumbbell handle hard enough to whiten the knuckles fatigues the forearm flexors early and cuts the set short before the target muscles are done.
The dumbbell drifts out away from the body through the curl instead of tracking straight, adding a shoulder component the neutral grip isn't meant to need.
Switching arms without resetting the pad height between sides carries a small setup error into the second arm and skews any side-to-side comparison.
Once grip fatigue shows up, the top of the range gets shortened instead of the set ending, which trains a partial rep as if it were a full one.

Frequently asked

How many reps of the hammer preacher curl should you do per arm when you are new to the exercise?: Start with 3 sets of 10 reps per arm at a weight that keeps the grip neutral the whole way. Once the wrist stops drifting toward supination on its own, add weight.
What can replace the hammer preacher curl with no preacher bench?: Standing hammer curls with dumbbells or a neutral-grip resistance band curl both train the brachioradialis without needing the bench.
What is the hammer preacher curl good for, and when should you skip it?: It builds the brachioradialis for forearm thickness and elbow-flexor strength alongside the biceps long head. It's a poor choice if grip or forearm fatigue is already your limiter that week, since it compounds fatigue rather than allowing recovery.

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