Rate of Perceived Exertion

rpe Rate of Perceived Exertion
RPE 1-2: Very easy; you can converse with no effort
RPE 3: Easy; you can converse with almost no effort
RPE 4: Moderately easy; you can converse comfortably with little effort
RPE 5: Moderate; conversation requires some effort
RPE 6: Moderately hard; conversation requires quite a bit of effort
RPE 7: Difficult; conversation requires a lot of effort
RPE 8: Very difficult; conversation requires maximum effort
RPE 9-10: Peak effort; no-talking zone