12. Ab Ripper X

12. Ab Ripper X

The combination and sequence of movements in this unique workout taps into not only abdominal strength, but true core strength as well. Master these 11 highly effective exercises and you will achieve vital abdominal muscle strength to benefit your overall health and physical performance. You'll also develop that highly coveted 6-pack as you take Ab Ripper X to full throttle. It's extreme work that's better than any machine in any club.