This workout from Bobby Maximus, trainer and author of the Maximus Body from Mens Health, is proof that you dont need a gym, heavy-duty equipment—or even basic equipment—to get in a heart-pumping, fat-melting workout.

"The 10 to 1 is one of my go-to exercises when I'm at home watching TV," Maximus says. "It's a workout you don't need any gear for, and it's a workout you can do in one spot."

This workout is a descending ladder, meaning you will start with 10 reps per exercise and remove one rep per round until you complete the workout at one rep per exercise. This setup allows you to maintain intensity as you fatigue, and intensity makes for a more effective workout in less time.

Directions: Perform the exercises below in the order listed, 10 reps each.

1. Pushup

2. Air Squat

3. Situp

4. Burpee

5. Lunge

That's one round. Repeat each round in a descending ladder format (9 reps, 8 reps, 7 reps, and so forth until you finish at 1 rep per exercise) for a total-body workout that you'll definitely feel the next day.