Ez barbell spider curl

Stand with your feet shoulder-width apart and hold the ez barbell with an underhand grip, palms facing up. Rest your upper arms on a preacher bench or stability ball, allowing your elbows to hang down. Keeping your upper arms stationary, exhale and curl the barbell up towards your shoulders. Pause for a moment at the top, squeezing your biceps. Inhale and slowly lower the barbell back to the starting position. Repeat for the desired number of repetitions.