When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty/Ben Welsh If you’ve never heard of RPE before, it simply stands for Rate of ...

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 ...

I was recently reading a French philosophy paper about fitness trackers (as one does) that compared the experience of the modern-day athlete to that of a gamer. With a heavy nod to Sartre, the authors ...