A stable in hinging and developing posterior strength is the RDL OR Romanian deadlift. It is a difficult movement for most due to the amount of thoracic mobility, torque, and glute activation. Many individuals attempt this lift when they simply cannot hinge due to weak glutes and hamstrings. Meaning, if you can’t flex the knee and HINGE (keeping the knee behind the toes) without midline stability breaking, you are not ready to RDL. Pay attention to the path of the bar, it doesn’t change. Pay attention to the cue {PULLING THE SLACK) out of the bar which connects your systems by simultaneously engaging your lats, core, obliques, and creates a rigid, neutral spine. Can you deadlift with a curved back? Yes, you can. However, as soon as the midline stability is broken by a missing link in the chain via mobility or skeletal muscle imbalance, the effectiveness of the lift is drastically decreased. In addition, deadlifting with a belt while you curve our back is dangerous as the belt is there to support a neutral core and spine. Most deadlift injuries happen because of this, and attempting to RDL with a rounded back or lordosis (anterior pelvic tilt) will indeed feel like shit. Lighten the load, critique your execution and delivery, let the ego go and learn.