Cable Exercises

Cable machines keep constant tension on the target muscle through the entire range of motion, which is the biggest thing that separates them from free weights, where tension naturally drops off at the very top or bottom of a rep depending on the exercise. The adjustable pulley height also lets you hit a muscle from angles a barbell or dumbbell simply can't reach, low-to-high cable flyes for the upper chest, or high-to-low cable crossovers for the lower chest, as one example. Cables suit anyone looking to isolate a specific muscle with more precision than free weights allow, and they're a particularly good fit for finishing a session, since the constant tension makes them effective even at lighter loads once you're fatigued from heavier compound work earlier in the workout. Program cable exercises in the 10 to 15 rep range for most isolation goals, focusing on a slow, controlled tempo to take advantage of the tension the cable provides throughout the movement. The most common mistake is using so much weight that momentum takes over, which defeats the entire advantage of a cable machine since jerking the weight breaks the constant tension that makes cables useful in the first place. A second is neglecting cables for compound movements entirely; cable-based presses, rows, and squats can be excellent options for lifters dealing with joint issues that make heavy free-weight compounds uncomfortable, and they're worth considering rather than dismissing as isolation-only tools.