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RPE Guide


What rate of perceived exertion (RPE) means:

RPE is used to gauge your intensity in cardio workouts. Here’s what the numbers in our fitness stories mean.

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


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