machines are a halfway house between resistance machines and free weights. Movement patterns are restricted, but not completely fixed, thanks to a rotatable joint attached to the top and bottom of the pulley system. That allows you to isolate specific muscles safely, while having to activate secondary muscles, which makes cables a fantastic training tool for hitting your biceps and triceps hard to build bigger, stronger and more defined arms. The ability to attach different handles to a cable machine means you can use it for a wide variety of exercises. And these machines maintain equal tension on
