Functional Trainers are pound-for-pound the most versatile strength machine on the market. The total number of exercises one can perform on a functional trainer, number well over 100. They are often called cable crossovers, “cable machines”, “adjustable pulley systems”, and “DAP” or “dual adjustable pulley systems”. Most functional training machines on the market are “space savers” as they take up less space than traditional “universal” type all-in-one gyms. Why do folks buy functional trainers versus other machines? Simple, they train the left and right side of the body equally, they provide a user defined movement versus a fixed path position, and they allow the user to perform compound movements working more muscle groups in less time with more calorie burning potential.