The Ultimate 5-Minute Challenge

Dec 12 / Build Muscle

With one squat and one pushup, this fitness challenge begins easily enough. But don't be fooled: It transforms into a grueling muscle-burner in no time. That's because you must add one extra squat and one extra pushup to every round—for five minutes straight. "Your workout density significantly increases as you progress, helping you sculpt more muscle and burn more fat in less time," says Todd Durkin, C.S.C.S., author of musclemorphosis.com and the mastermind behind this drill. But that also means you're cranking out a ton of reps in a short period of time. "You'll need sheer willpower and...

With one squat and one pushup, this fitness challenge begins easily enough. But don't be fooled: It transforms into a grueling muscle-burner in no time. That's because you must add one extra squat and one extra pushup to every round—for five minutes straight. "Your workout density significantly increases as you progress, helping you sculpt more muscle and burn more fat in less time," says Todd Durkin, C.S.C.S., author of musclemorphosis.com and the mastermind behind this drill. But that also means you're cranking out a ton of reps in a short period of time. "You'll need sheer willpower and great endurance to make it to the end," he warns.

Do you have what it takes? Watch the video below to see how to perform the challenge with perfect form. Durkin completed 13 rounds, which equals a total of 91 squats and 91 pushups in five minutes. Tell us how many rounds you finished in the comments.