Breaking Muscle Shop

rate of perceived exertion

Rate of perceived exertion, or RPE, is a good tool for measuring effort during a workout. New studies suggest it actually has more to do with rest periods than sets or reps.
Rate of perceived exertion is often used in running training. Example: Run at a pace you determine to be "moderate" or 5 on a 10-point scale. Is RPE useful in strength training? Science investigates.