1
Stand with feet shoulder-width apart, core engaged, and neutral spine. Hold a dumbbell in each hand with arms fully extended at your sides, palms facing forward (supinated grip). Maintain upright posture with shoulders back and down.
2
Position dumbbells at arm's length with elbows close to the torso. Ensure a firm grip with palms facing forward throughout the movement. Brace your core to prevent momentum and isolate the biceps.
3
Slowly lower the dumbbells by extending the elbows in a controlled manner, allowing the arms to straighten without fully locking out at the bottom. Maintain constant tension on the biceps throughout the descent and keep elbows stationary against the sides of the body.
4
Drive the dumbbells upward by flexing the elbows, bringing the weights toward the shoulders in a smooth arc. Squeeze the biceps at the top of the movement. Return to starting position with control, repeating for the desired number of repetitions without swinging or using body momentum.