This workout gives you a half hour of challenging cardio boxing, which all works toward transforming your body. This step-by-step video is perfect if you're bored with your current routine and

need a more dynamic shape-up to get you sweating. By the end, you'll be exhausted but inspired.

Combining HIIT cardio, strength, kickboxing and ab workouts, this video challenges you to burn 1,000 calories in one hour. The video takes you through a series of exercises, new and familiar,

and has a calorie tracker on the bottom of the screen to keep you motivated. This 60 minute workout is definitely intense, honestly it's less suited for beginners and more

suited for people who want to be challenged in their workout. The best part? You can do this from home!

This ready-for-home workout challenge can be done with a friend who is equally bored of treadmill time. There are three rounds: cardio warmup, strengthening, and then abs. While this challenge is

designed as a "workout-off", feel free to go at your own pace. This video is perfect for beginners, and includes a total body workout.

This workout, designed to target calories and problem areas, can be done in 30 minutes and the comfort your home. There's a timer on the screen, so feel free to

whip out that Google ChromeCast, project this video on the nearest big screen, and get in the zone. The workout is divided by circuits -- and spoiler alert, there's some

hip hop involved.

This challenge combines cardio and sculpting to burn 500 calories in 45 minutes. Lace up those sneakers, find some room and some workout buddies, and attack this dynamic training session.

The real-time workout is ideal for friends who need to shake up their gym schedule. After this workout, you're never going to want to look at a stair master or

elliptical!