Sit on an incline bench with your back against the pad and your feet flat on the ground. Grasp the cable handles with an underhand grip, palms facing up, and your arms fully extended. Keeping your upper arms stationary, exhale and curl the handles towards your shoulders while contracting your biceps. Pause for a moment at the top of the movement, squeezing your biceps. Inhale and slowly lower the handles back to the starting position, fully extending your arms. Repeat for the desired number of repetitions.
GIF
