1
Sit upright on a flat bench with feet flat on the floor, back against the bench, maintaining neutral spine alignment. Hold a dumbbell in each hand with arms extended down at your sides, palms facing forward (supinated grip).
2
Position shoulders back and down, engage core, and ensure elbows remain close to the torso throughout the movement. Establish a stable seated base with both feet planted firmly.
3
Slowly lower the dumbbells by extending the elbows in a controlled manner, allowing the arms to straighten while maintaining a slight bend at the elbow in the bottom position. Keep the upper arms stationary and avoid swinging the weight.
4
Flex the elbows to curl the dumbbells upward toward the shoulders in an arc motion, squeezing the biceps at the top of the movement. Return to the starting position with control, maintaining constant tension on the biceps throughout the concentric phase.