Pump the speed up enough to raise your heart rate and get you sweating.

Again, you gotta get your heart rate up for really achieve a good calorie burn.

The goal is to have a vigorous workout, not a dangerous one.

Image may contain Human Person Sport Fitness Sports Exercise and Working Out

How to do mountain climbers:Come to all fours in pushup position.

Work for 2 minutes, rest for one.

How to do lunges:Start standing with feet shoulder-width apart.

Image may contain Human Person Fitness Sport Sports Exercise Working Out and Gym

Repeat with the other leg.

Work for two minutes, rest for one.

From there, jump up as high as your can and land back in the squat position.

Image may contain Human Person Exercise Sport Sports Working Out Fitness Gym and Female

Work for two minutes, rest for one.

Repeat the circuit 10 times through for 90 minutes total time.

Using your back and shoulders, squeeze and pull your chin up above the bar.

Image may contain Human Person Fitness Sport Sports Exercise Working Out and Gym

Lower slowly until your arms are fully extended.

Work for one minute, rest for one minute.

Lower all the way back down.

Image may contain Human Person Exercise Sport Sports Working Out Fitness Clothing Apparel and Gym

Work for one minute, rest for one minute.

With your body still in a straight line, push back up to plane position.

Perform this on your knees if fully extended is too hard.

Image may contain Human Person Exercise Sport Sports Working Out Fitness Gym Floor Clothing and Apparel

Work for one minute, rest for one minute.

Repeat whole circuit four times through for a total of 20 minutes.

Photo Credit: David Barton Gym / DavidBartonGym.com