Running On Air: Breathing Technique
Running On Air: Breathing Technique | Runner's World. i'm a distance runner and this technique is actually great. the first day i tried it i was able to run almost twice the distance i run everyday. =D
Quelle : http://m.runnersworld.com/running-tips/running-air
Heißt das, Sie gehören Oder wissen Sie, wer es verkauft ?