the power P of our human engine should be equal to the sum of the power required to overcome the running resistance Pr the air-resistance Pa and the climbing resistance Pc as shown
Wondering how Pr & Pc are derived. More reading required.
When I looked into this before (a few years ago), the available options seemed to be unable to differentiate between different running surfaces and treated smooth tarmac and quagmire just the same.
probably not. but from what I've read it's a better metric to train with than heart rate as it has less external factors which can impact it.
I just like seeing numbers go up or down to tell me if i'm getting better or not.
this outlines the potential benefits quite well... https://www.trainingpeaks.com/blog/running-with-power-how-it-works-and-what-it-means/