There are three muscles that make up the triceps: the long head, medial head, and lateral head. The reverse grip triceps extension will emphasize the lateral aspect of the triceps. The function of the triceps is to extend the elbow. So any time you push a door closed, throw a ball, or put something away in a cabinet, your triceps are involved. The following are instructions for performing the reverse grip cable triceps pressdown:

First, ensure that the cable pulley unit is adjusted up high. Attach a short bar to the cable. Next, grasp the bar using an underhand grip (palms facing up), and lower your elbows so that they are near your rib cage. Extend your arms straight down, just short of locking your elbows. Slowly allow the bar to ascend to the starting position. It is important to keep your elbows in close to your rib cage throughout the entire range of motion.