Whether you’re training for a race or just trying to get fitter, understanding your effort level is crucial. One of the most effective and accessible tools for this is Rate of Perceived Exertion (RPE) ...

Many of us probably don’t work as hard as we could, but it’s not always easy to tell. The RPE (Rate of Perceived Exertion) scale helps with that. After all, sometimes fitness isn’t just about how much ...

Stop guessing your gym numbers. Learn how to use RPE to measure intensity, manage recovery, and ensure every workout actually drives strength and muscle gains.

Running is full of acronyms and if you’ve started getting serious with your training, you’ll have come across a plethora of terms. Amongst HRV, HIIT and VO2 max, you might have encountered RPE or, to ...

Working out too hard and not working out hard enough can both sabotage your fitness progress. The RPE scale can help you exercise at the right intensity. Fitness progress is all about intensity.

Achieving the ideal training intensity can be challenging. If you're breezing through all your sets, you might not be ...

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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. A few weeks ago, I ...

OBJECTIVE: To assess the test-retest reliability (repeatability) of Borg's 6-20 rating of perceived exertion (RPE) scale using a more appropriate statistical technique than has been employed in ...