Björn Friedrich
14-08-2018, 13:37
Schöner Vergleich zum Thema Performance im Gym und Performance im Wettkampf von John Danaher:
https://www.flograppling.com/video/6239109-danaher-story-time-the-parable-of-the-plank
https://www.flograppling.com/video/6239109-danaher-story-time-the-parable-of-the-plank