This book has been approved by TWiEA - The World Isometric Exercise Association (www.TWiEA.com). Currently, the entire range of books written by Brian Sterling-Vete and Helen Renee Wuorio about the Bullworker, isometrics, and other related forms of exercise are the only books to have received this approval together with TWiEA's 5-Star Rating. The Sixty Second ASS Workout(TM), or SSASS(TM) workout, is the fastest and most effective "ass" workout ever devised. Based on the scientifically proven principles of the ISOfitness(TM) exercise system, the SSASS(TM) workout is a no-nonsense, no time-wasting workout that really does do everything you need to make your ass, tight, firm, shapely, and strong. The SSASS(TM) routine means no more time-wasting workouts where you twist, shake, waggle around, kick your legs, or dance around for 30 minutes, which might feel like fun but don't deliver the results you want. Everyone has 60 seconds of time to spare, even on the busiest day, so, you're Just 60 seconds a day from having a great ass. Required Equipment: 2 x Iso-Bows - available on Amazon or from Bullworker.com