This exercise is a great alternative to the Preacher Curl. · Stand in front of an incline bench so your arm is resting on the top of the angled portion of the bench. · Grasp a dumbbell in your hand with palms facing up. · Rest your arm against the back bench and extend it fully down. · Keeping your arm on the bench at all times, curl the dumbbell up towards your head. · Pause for a moment and then lower the dumbbell back to starting position. · Switch arms and repeat.