We asked four of our trainers—all of whom are in chiseled condition—for their own routines they use to shred fat and drop pounds fast.

And damn, did they deliver.

These routines are designed to hammer your metabolic engine almost as hard as they hit your muscles, ensuring that you'll burn plenty of stored fat as you're improving muscle endurance and getting real-world strong—in just minutes.

Workout 1: 2-to-1 calorie torcher

DIRECTIONS: Do as many reps as possible of the prescribed movements in 40 seconds, then take a 20 second rest. At the end of the rest period, immediately start the next movement. Complete 3-5 rounds.

  1. Lunges
  2. Pushups
  3. Squat
  4. Pullups
  5. Burpees

WORKOUT CREATED BY: Will Huntington, C.S.C.S., Head coach at CrossFit Framingham

WHAT HE SAYS ABOUT HIS WORKOUT: "This workout uses a 2 to 1 work to rest ratio, one of the most effective ways to program a calorie torching routine while giving your body just enough rest to keep the intensity high. This is a great combination of movements because you can do it almost anywhere. Get creative while using the same format and sub in some of your favorites once a week to mix it up."

Workout 2: Compound testosterone booster

DIRECTIONS: The goal is to complete 6 rounds. Rest between rounds should be enough recovery to complete the same reps as the round before. Rounds 3 and 5 can reduce by one rep, but weight should remain the same or be increased.

  1. Hang cleans (6-8 reps)
  2. Jump squats (8-10 reps)
  3. Push press (6-8 reps)
  4. Pullups (10-12 reps)
  5. Dumbbell bench press (6-8 reps)
  6. Barbell bent-over row (8-10 reps)

WORKOUT CREATED BY: Justin Klein, C.S.C.S., M.Ed., Owner of T2Performance

WHAT HE SAYS ABOUT HIS WORKOUT: "This is one of my favorite workouts because it is loaded with compound movements to boost testosterone, ramp up the heart rate and caloric burn while hitting every major muscle of the body."

 

WORKOUT 3: Minimalist heart-racer

DIRECTIONS: Repeat the entire circuit 3-4 times. Rest for up to 3 minutes between each round for best results.

  1. Battle ropes (30 seconds)
  2. Wide-grip pullups (12 reps)
  3. Bar dips (12 reps)
  4. Close-grip pushups (20 reps)
  5. Alternating bodyweight lunges (12 reps)
  6. Standing barbell press (12 reps)
  7. Bicycle crunch (15 reps)

WORKOUT CREATED BY: Parker Cote, I.S.S.A., owner of Parker Cote Fitness

WHAT HE SAYS ABOUT HIS WORKOUT: "This fast-paced circuit will incinerate body fat by keeping your heart rate elevated throughout the workout and by utilizing compound, multi-joint moves. Compound exercises will activate more muscle fibers, which will help you burn the most calories. Best of all, the minimal amount of equipment required will ensure your circuit is not interrupted by waiting for machines or dumbbells."

 

Workout 4: Elite athlete wipeout

DIRECTIONS: Power through this as quickly as possible. (Good luck.) 

  • 400 meter sprint
  • 100 chinups
  • 100 burpees with full pushups
  • 400 meter sprint

WORKOUT CREATED BY: Dan Trink, CSCS, owner of Trink Fitness, director of operations at Peak Performance

WHAT HE SAYS ABOUT HIS WORKOUT: " This quite honestly may be the most brutal circuit I’ve ever programmed, and I’ve programmed some doozies. At first glance, it doesn’t look like much. But when you wrap your head around the fact that you are attempting one of the toughest sprint distances (400 meters), trying to grind through 100 chinups, then 100 burpees (pushup included) and then repeating the 400 meter, it’s just awful. This is not for the casual gym-goer. If you have been pushing strength-endurance, are a high level athlete or experienced CrossFitter, you’ll have a better shot at pulling this off."