# Dumbbell Hammer Preacher Curl

A one-arm preacher curl with a neutral grip, targeting the biceps and forearms. The pad fixes the upper arm, and the palm-in grip shifts more of the work to the forearm muscles than a palms-up curl.

- Beginner · Isolation
- Equipment: Dumbbells, Preacher Bench
- HD video: https://media.seto.fit/exercises/dumbbell-one-arm-hammer-preacher-curl/video/male.mp4
- HTML: https://seto.fit/exercises/dumbbell-hammer-preacher-curl/

## Muscles worked

- Biceps: 9/10
- Forearms: 8/10
- Front delts: 3/10

## How to do the Dumbbell Hammer Preacher Curl

1. Sit on the preacher bench, resting your upper arm firmly on the pad.
2. Hold the dumbbell with your palm facing inward, arm almost straight.
3. Curl the weight up, bending your elbow, keeping your upper arm still.
4. Lower slowly until your arm is almost straight, then switch arms.

### Full technique — 7 steps

1. Sit at the preacher bench and place one upper arm flat against the pad.
2. Hold the dumbbell with your palm facing inward and let the arm extend near straight.
3. Rest your torso against the bench and keep the shoulder from rolling forward.
4. Curl the dumbbell upward by bending the elbow without lifting the upper arm off the pad.
5. Raise until the forearm is nearly vertical, keeping the palm facing inward.
6. Lower the dumbbell back down until the elbow is almost fully extended.
7. Finish the set on one arm, then switch sides and repeat.

## Common mistakes

- Upper arm lifting off pad
- Letting shoulder roll forward
- Turning the palms up
- Cutting off the stretched bottom
- Bending the wrist through the curl

## Form cues

- Keep a neutral grip
- Keep upper arm still
- Start from full elbow extension
- Don't roll shoulders forward

## How much to do

- **Strength**: 3–4 sets of 6–8 reps · rest 2 min · 2 reps in reserve · lower 3 s, lift 1 s
- **Muscle growth** (best fit): 3–4 sets of 8–12 reps · rest 1 min 15 s · 2–3 reps in reserve · lower 3 s, lift 1 s
- **Endurance** (good fit): 2–3 sets of 15–20 reps · rest 45 s · 3–4 reps in reserve · lower 2 s, lift 2 s

Reps in reserve: how many more you could still do when you end the set.

## Substitutes by equipment

Same muscles, same movement — pick the version you have the gear for.

- **Resistance bands**: [Resistance Band Zottman Curl](https://seto.fit/exercises/resistance-band-zottman-curl/), [Resistance Band Hammer Curl](https://seto.fit/exercises/resistance-band-hammer-curl/)
- **Barbell**: [Bent Over Barbell Curl](https://seto.fit/exercises/bent-over-barbell-curl/), [Single Arm Barbell Curl](https://seto.fit/exercises/single-arm-barbell-curl/)
- **Kettlebell**: [Single Arm Kettlebell Curl](https://seto.fit/exercises/single-arm-kettlebell-curl/), [Kettlebell Goblet Curl](https://seto.fit/exercises/kettlebell-goblet-curl/)
- **Cable machine**: [Cable Reverse Curl](https://seto.fit/exercises/cable-reverse-curl/), [Single-Arm Cable Cross-Body Curl](https://seto.fit/exercises/cable-curl-behind-back/)

## Where to start and where to go next

Same muscles, same movement. Too hard for now — step down; once it gets easy — step up.

- Easier: [Alternating Machine Biceps Curl](https://seto.fit/exercises/alternating-machine-biceps-curl/) — Beginner
- **This exercise: Dumbbell Hammer Preacher Curl — Beginner**
- Harder: [Seated Zottman Curl](https://seto.fit/exercises/seated-zottman-curl/) — Beginner
- Harder: [Single Arm Dumbbell Zottman Preacher Curl](https://seto.fit/exercises/single-arm-dumbbell-zottman-preacher-curl/) — Intermediate

## Quick answers

### What muscles does the Dumbbell Hammer Preacher Curl work?

Primary: Biceps 9/10, Forearms 8/10. Also works: Front delts 3/10.

### Which joints does the Dumbbell Hammer Preacher Curl load?

Elbow: moderate, Wrist: low. Elbow — lighter options: Hammer Curl, Alternating Dumbbell Curl, Incline Dumbbell Curl.

### When should I do the Dumbbell Hammer Preacher Curl in a workout?

Finisher. Goes last, once the heavy work is done. ≈ 8 min with rest.

### How many sets and reps of the Dumbbell Hammer Preacher Curl?

Strength: 3–4 sets of 6–8 reps, rest 2 min, 2 reps in reserve. Muscle growth: 3–4 sets of 8–12 reps, rest 1 min 15 s, 2–3 reps in reserve. Endurance: 2–3 sets of 15–20 reps, rest 45 s, 3–4 reps in reserve.

### What can I do instead of the Dumbbell Hammer Preacher Curl?

Resistance bands: Resistance Band Zottman Curl, Resistance Band Hammer Curl. Barbell: Bent Over Barbell Curl, Single Arm Barbell Curl. Kettlebell: Single Arm Kettlebell Curl, Kettlebell Goblet Curl. Cable machine: Cable Reverse Curl, Single-Arm Cable Cross-Body Curl.

### What is an easier version of the Dumbbell Hammer Preacher Curl?

Alternating Machine Biceps Curl (Beginner).

### What is a harder version of the Dumbbell Hammer Preacher Curl?

Seated Zottman Curl (Beginner), Single Arm Dumbbell Zottman Preacher Curl (Intermediate).

How we rate exercises: https://seto.fit/guides/methodology/

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