How can I effectively perform the bicep drag curl exercise to target and strengthen my biceps?

To effectively perform the bicep drag curl exercise, start by holding a barbell with an underhand grip and keeping it close to your body. Slowly lift the barbell towards your chest while keeping your elbows back and close to your sides. Focus on squeezing your biceps at the top of the movement before lowering the barbell back down. This exercise targets and strengthens your biceps by emphasizing the contraction of the muscle throughout the movement.