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Exercise Guide

How to do dumbbell preacher curl

Master the setup, range of motion, and tempo for safer, more effective reps.

The dumbbell preacher curl is an isolation movement that focuses on the peak of the bicep by eliminating momentum. Resting the arm on a preacher bench ensures that the shoulder stays fixed, forcing the bicep to do all the work. Using a dumbbell allows for unilateral training, helping to fix size or strength differences between arms while providing an intense muscle pump.

Stats

DIFFICULTY
Untrained to Advanced
EQUIPMENT
Preacher Curl
TARGET MUSCLES
Biceps

Instructions for Proper Form

Setup:

  1. Position: Sit at a preacher curl bench. Adjust the seat height so that the back of your upper arm (triceps) rests flat on the pad when you're seated.
  2. Grip: Hold a dumbbell in one hand with an underhand grip (palm facing up).
  3. Starting Position: Fully extend your arm, with the back of your arm pressed firmly against the pad.

The Movement:

  1. Curl: Exhale and curl the dumbbell up towards your shoulder. Focus on using only your bicep to move the weight.
  2. Squeeze: Squeeze your bicep hard at the top of the movement.
  3. Lower: Inhale and slowly lower the dumbbell back to the starting position until your arm is fully extended.
  4. Repeat: Complete all reps on one arm before switching to the other.

Tips:

  • The preacher bench helps to isolate the bicep by preventing you from using your shoulders or back to swing the weight.
  • Do not lift your elbow or upper arm off the pad during the curl.
  • Control the eccentric (lowering) phase to maximize muscle growth.

Common mistakes: Lifting the elbows off the pad, leaning back to finish the rep, and not extending the arm fully at the bottom.

Alternatives

Bench

dumbbell seated curl

Biceps
Dumbbell

dumbbell standing curl

Biceps
Cable

cable curl

Biceps
Preacher Curl Machine

machine preacher curl

Biceps
Preacher Curl

ez-barbell close grip preacher curl

Biceps
Bench

dumbbell concentration curl

Biceps
Cable

cable one arm curl

Biceps
Crossover Cable

cable overhead curl

Biceps
Dumbbell

dumbbell prone incline curl

Biceps
Bench

dumbbell incline biceps curl

Biceps
Cable

cable biceps curl (sz bar)

Biceps
Ez Barbell

ez-barbell standing preacher curl

Biceps
Cable

cable hammer curl(rope)

Biceps
Barbell

barbell wide grip curl

Biceps
Bench

ez-barbell seated curl

Biceps
Barbell

barbell reverse curl

Biceps
Barbell

barbell preacher curl

Biceps
Dumbbell

dumbbell seated alternate biceps curl

Biceps
Bench

ez-barbell spider curl

Biceps
Cable

cable reverse curl

Biceps
Preacher Curl

dumbbell zottman preacher curl

Biceps
Dumbbell

dumbbell reverse grip biceps curl

Biceps
None

lying biceps curl with towel

Biceps
Dumbbell

dumbbell alternate biceps curl

Biceps
Resistance Band

band alternating bicep curl

Biceps
Barbell

barbell curl

Biceps
Bench

dumbbell incline hammer curl

Biceps
Preacher Curl

dumbbell preacher curl

Biceps
Dumbbell

dumbbell bicep curl

Biceps
Resistance Band

band standing hammer curl

Biceps