The Leg Matrix

You might call this our 2 minutes of Hell workout. If you can make it through two rounds of this routine, you're a fitter man than most.

Here’s the kicker: The best performance we’ve ever heard of was done by a Division one FEMALE volleyball player. Her time: two rounds in 3 minutes total.

How to do it: Do one set of each exercise below without resting, and keep track of how long it takes you to complete the circuit. Then rest for twice that duration, and repeat once. When you can finish the first circuit in 90 seconds, skip the rest period.

• Bodyweight Squat: 24 reps

• Bodyweight Alternating Lunge: 12 reps (each leg)

• Bodyweight Split Jump: 12 reps each leg

• Bodyweight Jump Squat (for fat loss): 24 reps