Doing a ten or fifteen minute workout isn't going to yield great results if you take it easy. High intensity interval training workouts are exactly that, High Intensity. Ten to fifteen minutes of giving it your all. Raising your heart rate into the cardio/aerobic levels while doing strength training is a great way to burn fat, and build muscle. This helps build your metabolism and is shown to continue to burn fat for the next 23 hours following a workout.
Exert your maximum energy for a shorter period and get maximum benefits from High Intensity Interval Training. Another great part about these workouts is the lack of equipment needed. Bodyweight exercises mean you can do your workout anywhere, without worrying about getting to a gym. So, whether you're waiting for a plane or just sitting around at home, there is nothing stopping you from having an awesome workout and burning off some fat while building muscle.