"High-mileage runners expend less energy than low-mileage runners High-mileage runners expend less..."

“High-mileage runners expend less energy than low-mileage runners High-mileage runners expend less energy than low-mileage runners”

- https://www.sciencedaily.com/releases/2016/12/161222130520.htm

source http://physiquesportsuk.tumblr.com/post/154853633934