AKA RDL. The name Romanian Deadlift is commonly used incorrectly to describe a Stiff-Leg Deadlift. The movements are similar, but the key difference is that in the RDL, the knees remain bent from start to finish—they are never fully extended. Start with the knees slightly bent and torso upright. Push the hips back, keep the knees slightly bent and your back set in complete extension, and lower the bar as far as your hamstring flexibility will allow. Return to the starting position, keeping the knees slightly bent.