Just a heads up about a new measurement possibility for runners.
As the article says, training and racing for cyclists, is now based on power meters . Runners did not have access to such measurements (and models) until recently.
There is a new tool on the market for those who have a desire to have
data to track their training and performances. For years, cyclists and
triathletes have used power meters on their bikes, which has
revolutionized the way these athletes and coaches train, race, and
assess training load. Now power meter technology has made the jump to
the sport of running, and it could revolutionize running, much like it