Measurement
RPE (Rate of Perceived Exertion)
Also written: RPE, rate of perceived exertion
A 1–10 score for how hard a set felt. 10 means you couldn't have done another rep.
lets you match your training to how you actually feel that day. On a lifting scale, RPE 8 means you had about 2 reps left; RPE 10 means nothing left.
It takes practice to rate honestly. Logging RPE every session is how you get good at it.