Single-Arm Dumbbell Preacher Curl
The Single-Arm Dumbbell Preacher Curl is an effective exercise for isolating and strengthening the biceps. Using one arm at a time allows you to focus on the muscle contraction and correct any strength imbalances between your arms.
Execution
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1
Find a preacher bench and pick up a dumbbell with a weight suitable for your level.
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2
Place your upper arm against the angled side of the bench, with your arm fully extended.
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3
Inhale and curl the dumbbell upward toward your shoulder while keeping your upper arm still.
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4
Briefly hold the top position and squeeze your biceps firmly.
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5
Exhale and slowly lower the dumbbell back to the starting position.
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6
Repeat the movement for the desired number of repetitions, then switch arms.
Benefits
- Isolation of the biceps for targeted muscle growth.
- Improved symmetry between the arms.
- Increased focus on the muscle contraction.
Common Mistakes
- ! Using too much weight, causing you to swing or move your upper arm.
- ! Not fully extending the arm in the bottom position.
- ! Performing the movement too quickly, which prevents the muscle from being used optimally.
Main Muscles
This exercise primarily targets the biceps brachii, with secondary involvement from the brachialis and brachioradialis muscles.
Possible Alternatives
- Performing the preacher curl with both arms simultaneously if you want more stability.
- Hammer curl on the preacher bench for variation in muscle activation.
- Using an EZ bar instead of dumbbells for a different grip and muscle stimulation.
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