STEP 1. Incline a bench toward the 45-degree angle mark. Grab two dumbbells with an underhand grip (as illustrated) and lean against the bench.
STEP 2. Curl the weights slowly straight up. Your wrists should always be fixed, resist twisting them, and keep your upper arms perpendicular to the floor.
Target: Arms Muscles Worked: Brachialis, Biceps Brachii