While there are plenty of fancy gadgets you can use to track your effort in the gym or on a run, there’s one core metric that uses no tech at all: the rate of perceived exertion. RPE in the most basic ...

Rate of perceived exertion (RPE) is a way to measure the level of exertion a person feels during physical activity. RPE is a useful tool that helps people manage the intensity of their physical ...

Okay, so you’ve gotten a few weeks of strength training under your belt and you’ve documented your one-rep-max for those big barbell lifts. To progress toward the next PR, you’ll typically lift a ...