DO THE TWIST

223. DO THE TWIST The biceps perform three functions. In addition to the familiar raising of the forearm and as a secondary muscle in raising the arm from the shoulder, biceps also rotate the forearm. You can make alternate ctumbell curls more effective by twisting the dumbells from an inward to outward position as you raise them. Twisting the dumbells as you lift and lower (called supination) stimulates the biceps over their full range of motion.