When you are working out your arms, it is nice to be able to work out multiple major muscle groups at the same time. This makes for both a shorter workout and a greater feeling of accomplishment. The Body-Solid Leverage Lat Pulldown, LVLA exercise machine can help you accomplish just that. It focuses on the following major muscle groups: biceps, lats, traps, and triceps. The two major exercises it can do are the Wide Grip Front Lat Pullup and the Close Grip Front Lat Pulldown.