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Biceps

Alternating dumbbell curl: how to do it right

The alternating curl lifts one dumbbell at a time, rotating your wrist on the way up. It lets you focus on each arm and fix differences.

Main muscle
Biceps
Also works
Brachialis, Forearms
Equipment
Dumbbells
Level
Beginner
Alternating dumbbell curl: start position
Start position
Alternating dumbbell curl: end position
End position

Step by step

  1. Stand with a dumbbell in each hand, palms facing each other.
  2. Curl one dumbbell up, bending your elbow and rotating your palm to face up.
  3. Squeeze your biceps at the top.
  4. Lower slowly and repeat with the other arm.

Tip: Seated on a bench it's harder to cheat with your body.

Common mistakes

Swinging your body

If you need momentum, lower the weight.

Elbow drifting forward

Your elbow stays by your side.

Dropping the weight

Control the lowering.

Sets and reps

Guide ranges. Start with a weight where the last rep is hard but your technique holds.

GoalSetsRepsRest
Strength3–53–62–3 min
Build muscle3–46–121.5–2 min
Health and fitness2–310–151 min

In GymOrbita you log every set and the app suggests the weight for your next session based on what you did last time.

Alternatives

If the machine is busy or you want a variation:

FAQ

Alternating or both at once?

Alternating lets you focus on each arm; both at once is quicker. Both work.

General technique information, not a substitute for professional advice. If you have an injury or pain, check with a doctor or physiotherapist first.

Add alternating dumbbell curl to your routine

GymOrbita has this exercise with its animation: log the weight and reps of every set and track your progress. Free.