Peter Attia· MD
whereas when they look at rpe validity in advanced lifters it tends to be much more accurate much more accurate so there was actually a study I was in a powerlifting meet where they had a tiendo unit on the bar and they were measuring our bar velocity and they were asking us to rate our RP after every attempt and they found that RP as validated by velocity data was a pretty good measure in that population of power power lifters because they've taken so many sets near failure