Dumbbell Curl
A simple elbow-flexion move for bigger, stronger biceps. Dumbbells let each arm work on its own and rotate naturally.
Muscle activation
- Biceps75%
- Forearms20%
- Front delts5%
Approximate share of work; varies with grip, stance and tempo.
Step by step
1. Start position
Stand tall with a dumbbell in each hand, arms hanging straight at your sides.
2. Mid-rep
Rotate the palms up toward the ceiling as you lift.
3. End of the movement
Squeeze the biceps at the top, around shoulder height, without letting the elbows drift far forward.
4. Common mistake
Swinging the torso to lift the weight
Ways to do it
Biceps curl on 8 different setups — pick whatever is free in your gym. Progress is tracked separately for each.
How to do it
Setup
- 1Stand tall with a dumbbell in each hand, arms hanging straight at your sides.
- 2Turn your palms forward (or start neutral and rotate as you curl).
- 3Pin your elbows lightly against your sides and brace your abs.
Execution
- 1Curl the dumbbells up by bending at the elbows, keeping the upper arms still.
- 2Rotate the palms up toward the ceiling as you lift.
- 3Squeeze the biceps at the top, around shoulder height, without letting the elbows drift far forward.
- 4Lower slowly until your arms are fully straight.
Breathing
Breathe out as you curl up, breathe in as you lower.
Tempo
3-0-1-1 (eccentric-pause-concentric-pause)
Muscles worked
Primary
Biceps
Secondary
Forearms, Front delts
Key form cues
- Elbows stay pinned
- Pinkies turn up
- Squeeze at the top
- Full stretch at the bottom
Common mistakes
Swinging the torso to lift the weight
Choose a lighter dumbbell and stand with your back against a wall if needed.
Cutting the bottom of the rep short
Fully straighten the elbow each rep to train the biceps through its full length.
Elbows drifting forward to finish the rep
Keep the upper arm close to vertical so the biceps stay under tension.
Range of motion
From arms fully straight at your sides to dumbbells near shoulder height with the elbows still by your sides.
Variations
Easier
Seated alternating dumbbell curl
Harder
Incline dumbbell curl
At home
Resistance band curl or backpack curl
Machine / cable
Cable curl or preacher curl machine