Principles of Change
To keep seeing change in your body, mix up your exercise plan once in a while by adjusting the frequency of your workouts, intensity, time and/or type of exercise (FITT principle). Try two workouts per day, an early workout session followed by a lunch time or evening swim will nearly double the calories you burn throughout the day, which also follows the excess post-exercise oxygen consumption principle (EPOC). EPOC refers to the extra boost in your metabolism following each workout. This varies based on fitness levels and genetics.