Whether you are a professional athlete hoping to improve your fitness or someone who’s looking to lose weight and become fit, cardio exercises are a great way to improve your health and stamina. In order to improve your cardio, you can always use an elliptical or a treadmill. While these devices are very effective in helping you lose weight, there is a limit on how much you can achieve with the lower end machines. I don’t know about you, but as someone who intends to stay fit and even improve my fitness, I can’t imagine running on a treadmill for hours each day. Eventually, you are going to run out of hours.

That’s where extreme workout machines come in. They not only help you take your fitness game to the next level, they’ll also save you time too. So instead of spending 5 hours on a treadmill, you can spend 1 hour on these machines and burn the same amount of calories. If you are looking for extreme cardio machines, here are 4 that you should try out:

Bowflex TC5000 Treadclimber: a great hybrid machine that combines the functionality of a treadmill and a stepper. It feels as though you are running up the stairs. If you think you are fit, wait till you try this for a few minutes.

StairMaster SC916 Stepper: a super stepper that will help you push your cardio game to the next level. Whether you want to burn that fat or just burn calorie, this is one heck of a machine to try.

Nautilus EV7.16 Pro Series Elliptical Trainer: you can always get more fit with those budget elliptical trainers, but this is one heck of a pro elliptical trainer that will get your heart pumping. Comes with lifetime warranty as well.

StairMaster SM916 StepMill: nothing’s like exercising on a real set of stairs. This is not a stepper for the faint of heart. It’s very easy to work with but can your heart pumping hard. Step range of 24 to 162 steps per minute.

These 4 machines give a new meaning to the concept of extreme cardio. They will challenge you like no other machine and will get you fit as long as you are determined to get fit. They are not cheap, but they do get the job done.