Have you ever been to a gym during peak times when you aren't supposed to be on the cardio equipment for longer than 30 minutes? Or have just wanted to get your workout done quickly to go home or get your to-do list completed?
If this sounds familiar, then I have a great treadmill workout for you that takes minimal time, and will not only have you sweating, but will torch 500 calories.
This workout is 40 minutes long and will burn 500 calories if you follow it and do not quit; if you have to stick to a 30 minute limit though you will be doing 3 repetitions instead of 4.
It's simple; set your treadmill to the listed incline and speed for the specified amount of time.