Form cues
- Keep elbows stationary
- Rotate palm up during curl
- Don't swing weights
- Engage your core
Exercise
Upper arms, dumbbell

A seated exercise curling dumbbells alternately to build bicep size and strength.
Target: biceps. Also works: brachialis, brachioradialis, forearms.
Form cues
Common mistakes
Exhale as you curl up, inhale as you lower down.
In the app, search for Seated Alternating Dumbbell Curl and add it to a workout.