A unilateral arm exercise where you curl one dumbbell at a time while keeping the other arm in a resting position. Stand upright with dumbbells at your sides, then lift one weight by bending your elbow and rotating your palm upward as you raise it. Lower it under control before switching sides. This alternating pattern improves focus on each arm individually, helping correct imbalances and build balanced strength and muscle definition.
Log your dumbbell alternate biceps curl sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.