Alternating Dumbbell Curl — how to, muscles worked, alternatives

How to do the Alternating Dumbbell Curl

Stand tall, holding a dumbbell in each hand, palms facing your thighs.
Curl one dumbbell up toward your shoulder, turning your palm up and keeping your elbow still.
Slowly lower the weight to full elbow extension, then repeat on the other side.

Full technique — 7 steps

Stand tall with a dumbbell in each hand, arms at your sides, and palms facing your thighs.
Set your shoulders back and keep your elbows close to your torso.
Curl one dumbbell toward the same-side shoulder, turning your palm up, without letting the elbow drift forward.
Raise until the forearm is nearly vertical and the biceps fully shorten.
Lower that dumbbell back to full elbow extension without swinging your torso.
Curl the opposite dumbbell the same way while the first arm stays at your side.
Continue alternating sides, keeping each rep smooth and matching the range on both arms.

Common mistakes

Swinging the torso to start reps
Letting elbows drift forward
Cutting off the bottom range
Turning it into a hammer curl

Form cues

Keep elbows pinned
Stand tall throughout
Palms stay up
Match both sides

Compared with similar variants

	Alternating Dumbbell Curl	Hammer Curl	Barbell Curl	Incline Dumbbell Curl
Level	Beginner	Beginner	Beginner	Beginner
Technique to learn	easy	easy	easy	easy
How tiring	low	low	low	low
Elbow	low	low	moderate	low
Wrist	low	low	low	—
Equipment	Dumbbells	Dumbbells	Barbell	Dumbbells, Adjustable bench

An estimate from our exercise ratings, not medical advice. How we rate exercises

Substitutes by equipment

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

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 Beginner
This exercise Alternating Dumbbell Curl Beginner
Harder Seated Zottman Curl Beginner
Harder Single Arm Dumbbell Zottman Preacher Curl Intermediate

Too hard for now? Start with the Alternating Machine Biceps Curl.

Quick answers

What muscles does the Alternating Dumbbell Curl work?

Primary: Biceps 10/10. Also works: Forearms 6/10.

Which joints does the Alternating Dumbbell Curl load?

Elbow: low, Wrist: low.

When should I do the Alternating Dumbbell Curl in a workout?

Finisher. Goes last, once the heavy work is done. ≈ 6 min with rest.

How many sets and reps of the Alternating Dumbbell Curl?

Strength: 4–5 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 Alternating Dumbbell Curl?

Barbell: Barbell Curl, Single Arm Barbell Curl. Resistance bands: Resistance Band Spider Curl, Squatting Resistance Band Curl. No equipment: EZ Bar Spider Curl, Leg Resisted Biceps Curl. Kettlebell: Incline Bench Kettlebell Preacher Curl, Kettlebell Concentration Curl.