У вашего броузера проблема в совместимости с HTML5
http://www.suspensionrevolution.com
Dan Long shows you 3 exercises that you're not using, from the Suspension Revolution program.
1.Spider-Man Push-Up w/90 Degree Knee Kick
2.Atomic Oblique Crunch w/Push-Up
3.Push-Up w/Hop 3 Hops Fwd 3 Hops Back
http://www.suspensionrevolution.com