This accessory exercise for the deadlift will strengthen your spinal erectors. This helps you to deadlift heavier while keeping your spine stable and safe.
Deadlifting heavy gets a bad reputation because some people get injured. But the most common injuries come from bad form and/or the spine alternating positions throughout the lift.
Rounded thoracic RDLs will allow you to introduce spinal flexion under small loads. And they'll help you gain the strength you need in your spinal erectors to protect the mid back and up.
An important factor is allowing your scapula to protract and retract to its full extent as well as creating as much spinal flexion and extension as possible.
Most of us poor slobs have jobs so we don't have the luxury of doing two-a-days, but we figure since it's summer there are a bunch of feckless college students out there doing one bong hit after another who just might be able to take advantage of this program.