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The good news is, you're halfway there! The bad news is, now it gets really tough.
Tired of going solo? Rope in a friend for the Buddy Carry.
Get in fighting shape with these combat-inspired knuckle push-ups.
Prepare to pull and push your way to fitness with this brutal work out!
Admit it – you want to learn how to do an exercise called The Scorpion.
Get your heart pounding with this cardio routine.
If you're still alive, congratulations! You're now a third of the way through!
You are seriously going to feel the burn in your legs after this one (if you're short on time, we'll…
We thought a "flutter kick" sounded like it'd be easy. We were wrong.
Watch this video to see why they call it the world's toughest workout.