By doing aerobic training on an empty 14 Day Rapid Soup Diet Review stomach you are tapping right into your fat stores and burning them away with every passing minute. Since you have optimally reduced carbohydrate intake early the night before, your body should have very little carbohydrate the preferred fuel source to burn through in order to maximize your fat burn.
I have my clients do something basic like walk on the treadmill, ride their bike or swim laps in a pool. The key is to keep your intensity moderate and keep moving for the entire aerobic training session. If you did #2 above properly the night before, your body will be a fat burning furnace and will literally melt body fat away not only as you exercise, but afterward.