This workout from Miami-based personal trainer Idalis Velazquez is fast and furious as you move through 5 challenging exercises with no rest. That means you'll be getting a crazy amount of cardio without ever stepping on a treadmill, and your metabolism will be switched on to high. You'll also strengthen every muscle from head to toe—especially your core and shoulders. (Get dozens of free workouts on your phone with the FREE Men’s Health App. Download it here.)

Directions: Perform the exercises below in the order listed:

  1. Kettlebell clean and press, 20 reps
  2. Kettlebell swing, 30 reps
  3. Kettlebell alternating pushup, 5 to 10 reps per side
  4. Moving mountain climber, 40 reps
  5. Jump rope, 50 reps

Rest 2 minutes. That's 1 round. Do 5 rounds.