[LRVNHQ]

I don't know what point this article is trying to make, but I guess the author doesn't know much about running since he conflates sprinting and long distance running. Long distance running is an endurance sport, sprinting is more aking to a very specific application of power/strength training. The stride isn't event the same.

Before doing any kind of data analysis, it's worth considering if your datapoints are even refering to the same thing.