Peter Attia· MD
you're going to do kettle bell dumbbell barbell RDL barbell okay barbell yep set the barbell in the squat rack put it underneath and set the height of those safety pins to whatever height feels comfortable for you and so you'll then get in there and do that RDL and you'll pull up against that bar and nothing will move and your back will feel comfortable wherever that range of motion is for you your glutes can be there your feet can be in the right position