What is RPE?
RPE = Rate of Perceived Exertion, 1–10. RPE 7 means 'I had 3 good reps left in the tank.' RPE 8 = 2 reps left. RPE 9 = 1 rep left. RPE 10 = max effort, no reps left. Use it to autoregulate — strong day, add weight; tired day, hold the line.
