I am not a runner. I never have been. I have however just started running once a week in an effort to give my body a bit of variety; it turns out only cycling all the time and never really doing anything else at all has some detrimental effects. Once a week I do a 5k, or even a 10k if I really push the boat out, but I am not one to bother the startline of a Park Run, and I am so far from signing up to a marathon that you would not believe it. It’s a necessity, not a hobby.
However, as a cyclist, I am used to endless data after my exercise. My bike computer tells me my power, my left/right leg split, my cadence, my heart rate, live segment times, current and average speeds. It even predicts my Vo2 Max. If I wanted to I could have my core body temperature measured, my sweat, or even my coefficient of drag.