RPE
Also called: Rate of Perceived Exertion
RPE stands for Rate of Perceived Exertion: a 1-to-10 rating of how hard a set felt. 10 means you had nothing left.
RPE and RIR describe the same thing from opposite ends: RPE 8 is about the same as RIR 2.
Related
Section titled “Related”- RIR — reps left in the tank, which is what HeavyTrack records on each set