1000 Calorie Workout - strength, cardio and abs workout to burn 1000 calories. Some people will burn more than 1000 calories, and some will burn less. Remember to push yourself, but to listen to your body and feel free to stop and take extra breaks if and when you really need them. Sometimes even stopping for a few seconds can give you the extra energy you need to push through the end of an active interval. If your form ever starts to suffer, take a quick break before jumping back in; all throughout the routine but especially during the strength training, good form is important.