Tipp von Head Coach Gregor Schregle – Double Unders
[icon id=”lightbulb-o” color=”yellow”] Head Coach und Reebok Athlet Gregor Schregle verrät dir, wie du deine Atmung bei Double-Unders optimieren kannst. A video posted by Reebok Germany (@reebokgermany) on Oct 6, 2015 at 3:35am PDT