Originally Posted by skeen7908
What do you understand the technique difference to be?
in the romanian deadlift the bar stays close to the body, the back stays straight or in extension, and it's not critical for the hamstrings to be stretched at the bottom; i.e. the knees can be slightly bent. The contraction is in the glutes. The RDL tends to not go so low because the back needs to stay straight so that the glutes alone are doing the work.
In the stiff leg deadlifts, the bar moves out in front of you, the back can flex a little (if you want it to, you can do it without and make it more about the hamstrings and glutes), and the knees stay straight because you want to feel the hamstrings stretching and contracting.
How low you go for both is totally up to you and your mobility, but SLDLs tend to go lower.
I prefer stiff leg deadlifts because it doesn't make sense to me to do such a heavy, compound lift that's pretty much only targeting the glutes. But if you don't have a glute machine and your glutes are lagging than RDLs totally make sense.