Are You This Strong? Dragon Door PCC Instructors Talk True Strength!
http://www.dragondoor.com In June 2013, Dragon Door history was made in the area of bodyweight strength. Watch instructors teach and perform clutch flags, human flags, one-arm push-ups, levers, and more during the launch of Dragon Door's Progressive Calisthenics Certification (PCC) in St. Paul, MN. Learn more about the PCC here: http://www.dragondoor.com/workshops/p...