
The dumbbell biceps curl is the core biceps exercise.
Standing, a dumbbell in each hand, arms extended by your sides, palms facing forward.
Bend your elbows to curl the dumbbells toward your shoulders, then lower slowly until arms are extended.
Elbows stay pinned to your body and torso motionless: do not swing to lift.
Image and text: Bryl Lim / Everkinetic — recoloré et rastérisé — CC BY-SA 4.0, via Workout Guide. Original entry