How to do the Dumbbell Preacher Curl Single Arm
Primary: Biceps.
The DB Preacher Curl Single Arm exercise targets the biceps using a dumbbell and preacher bench, which helps to isolate the biceps and prevent cheating. It is a beginner-friendly exercise that strengthens the arm muscles, improves muscle balance, and enhances symmetry, making it ideal for building arm definition.
Step by step
- 1
Sit on the preacher bench with your arm extended over the bench pad and grab a dumbbell with an underhand grip.
- 2
Curl the dumbbell upwards by contracting your biceps while keeping your upper arm and elbow steady.
- 3
Lower the dumbbell back to the starting position in a controlled manner to complete one repetition.
Coaching cues
- Ensure your arm is fully extended at the start to maximize the range of motion.
- Avoid swinging or using body momentum to lift the weight.
- Control the weight throughout the movement to maintain tension on the biceps.
Sets, reps and where it fits
Muscle
3–4 × 8–15
rest 60–90 s
Strength
not a strength lift
use for assistance
Fat loss
3 × 10–15
rest 45–60 s
Dumbbell Preacher Curl Single Arm alternatives
Same movement pattern, different equipment or difficulty. Swap one-for-one in any plan.
Frequently asked questions
What muscles does the Dumbbell Preacher Curl Single Arm work?
Primary: Biceps.
How many sets and reps of Dumbbell Preacher Curl Single Arm should I do?
For muscle: 3–4 sets of 8–15 reps. For strength on compound lifts: 4–5 sets of 4–6. Rest 60–120 seconds between sets.
What can I do instead of the Dumbbell Preacher Curl Single Arm?
Same movement pattern, different equipment: Concentration Curl, Dumbbell Curl, Hammer Curl, Reverse Curl, Incline Dumbbell Curl, Zottman Curl.
Is the Dumbbell Preacher Curl Single Arm good for beginners?
Yes. It is a beginner-friendly movement; start light, master the steps above and add load gradually.