Rope Straight Arm Pulldown

The rope straight arm pulldown isolates the latissimus dorsi by keeping the elbows locked, which removes the biceps from the equation entirely. In every other back exercise the arm flexors help, and on a heavy set they often become the limiting factor before the lats do. Here the arms are simply levers: the lat pulls the upper arm down and back in a sweeping arc, and nothing else can contribute. The rope adds a small but real advantage over a straight bar, because the hands can separate at the bottom and let the shoulder blades finish the movement rather than stopping where a fixed bar allows. Keep a hinge at the hips so the arc has room to travel, and resist the urge to bend the elbows as fatigue arrives. The moment they bend, the exercise has quietly become a pushdown.