Train your glutes to hinge without wrecking your back.
Push the hips back to load, then snap them forward. This is a hinge, not a squat.
The low cable pulling backward through your legs forces you into a pure hip hinge, and your glutes have to fire hard to drag your hips forward against it. Your hamstrings load up during the stretch as you push your hips back, then hand off to the glutes for the squeeze at lockout. Because the resistance pulls from behind rather than hanging from your hands, your lower body does the hinging without your grip or spine position becoming the limiter, which makes it a superb way to groove the pattern.
Teaching and training the hip hinge. The rope pulling from behind forces your hips back into a deep stretch and makes the glutes finish every rep, so it is ideal for learning to hinge before or alongside deadlifts.
The RDL lets you load heavier, while the pull through keeps tension on the glutes at lockout and is far easier to learn. Many lifters use the pull through as a glute finisher or a hinge teacher, then keep RDLs as the heavy hinge.
You are probably squatting the movement or letting the weight yank you into a rounded position. Keep only a soft knee bend, push your hips straight back rather than down, and use a weight you can control through the full stretch.
