The name sounds simple enough, but that's where it ends. The "20 Up 20 Down" Challenge is a real grinder that will expose weaknesses you didn't know you had! This 20 minute test of wills may seem easy the first few rounds. By the middle, you'll be...

You can't get your degree in ATHLEAN-X until you pass our version of finals...the "Final X-AM". This total body race against the clock determines your transition from AX1 to AX2...and with no scoring curve, you better hold nothing back. Thinking ab...

Proving just as tough as the guys in the movie, the X-PENDABLES Workout is yet another Burst Training beast that puts you through a total body test even Rambo himself would find challenging. Mixing exercises like the "Cyclone Swings" and Torture Rac...

Got a bike that's been sitting around unused? Well dust off that fat burning machine, apply a bit of Burst Training science to it and get ready to get ripped. The Tour De Ripped is an amazing fat shredding workout that gets your legs pumping your he...