RPE (rate of perceived exertion) is an easy and fast way to gauge exercise intensity without a fitness tracker or heart rate monitor—here's what to know.

RPE is a way of measuring how intense your workouts are. Here's what it means, the difference between the Borg and RPE scales, and how to calculate yours.

Rate of Perceived Exertion or RPE appears to correlate with training load and using that rating scale may help runners go faster and push past limitations.

Objective To verify the effects of exercise intensity deception by the Borg scale on the ratings of perceived exertion (RPE), heart rate (HR) and performance responses during a constant power output ...

The 27-year-old son of Norway’s Crown Princess has been arrested on suspicion of rape, Norwegian police said Tuesday.