RPE
rate of perceived exertion
Your own rating of how hard an effort was, on a 1-10 scale — the simplest and most universal measure of training load.
RPE needs no watch, no power meter, no chest strap. It needs honesty with yourself — which is exactly why it works for everyone, on any equipment, in any sport.
We use Borg’s CR10 scale: 1 is rest, 10 is the hardest effort you can produce. You give the rating after the session, judging the whole thing rather than its hardest moment.
RPE and duration together give sRPE — session load. That feeds the fitness curve, ACWR and every indicator on your dashboard. Without RPE the app has nothing to measure load with.
How to read the values
What to do about it
- Rate within 30 minutes of finishing — memory softens after that.
- Rate the whole session, not its hardest interval. Intervals with long recoveries are often a 7, not a 9.
- Do not inflate it to make the chart look better. Inflated RPE inflates load and triggers warnings with nothing behind them.
A common misconception
“RPE is less accurate than heart rate.”
In research, sRPE correlates with heart-rate and power-based load strongly enough to be a peer method in practice. It even has the edge where heart rate fails: short intervals, heat, and medication affecting heart rhythm.
Related terms
See these numbers on your own data
In the app every indicator comes with an explanation of what it means in your case and what we suggest doing next.
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