Barbell Preacher Curl

Adjust the preacher bench so that your upper arms rest comfortably on the pad and your feet are flat on the ground.

Sit on the bench and grip the barbell with an underhand grip, hands shoulder-width apart.

Focus on keeping your upper arms pressed firmly against the pad to isolate the biceps effectively.

Avoid using momentum or swinging your body to lift the weight; maintain strict form for maximum muscle engagement.

Lifting the upper arms away from the pad to help the barbell move.

Bouncing or forcefully locking out at the bottom of the repetition.

Rocking the shoulders or torso instead of curling through the elbows.