1
Stand upright with feet shoulder-width apart, knees slightly bent, core engaged. Hold a barbell with both hands using an underhand (supinated) grip, arms fully extended at sides with the bar resting at hip level. Shoulders should be relaxed and pulled back.
2
Grip the barbell with palms facing forward, hands positioned slightly wider than shoulder-width. Ensure elbows remain tucked close to the torso throughout the movement. Maintain a neutral spine with chest up and shoulders back.
3
Lower the barbell in a controlled manner by extending the elbows, allowing the weight to descend toward the hip level. The movement is slow and controlled, resisting gravity while maintaining tension in the biceps. Do not allow momentum to control the descent.
4
Flex both elbows to curl the barbell upward toward shoulder height in one smooth motion. Drive through the forearms and biceps, bringing the bar to approximately chest level or slightly lower. Squeeze the biceps at the top position briefly before initiating the eccentric phase.