"Treadmill running with heavier shoes tied to slower race times Treadmill running with heavier shoes..."

“Treadmill running with heavier shoes tied to slower race times Treadmill running with heavier shoes tied to slower race times”

- https://www.sciencedaily.com/releases/2016/10/161028161831.htm

source http://physiquesportsuk.tumblr.com/post/152483702959