When it comes to abs, everyone wants them, but not everyone wants to do the work. I created two abs strength workouts that should show results within three to four months, when done regularly and with gradual increases in challenge (eg. heavier weight or exercise modification). The reason we do strength training to engage the entire core (not just your abdominals) is for fat loss and getting lean. The two abs strength workouts pair upper and lower body, as well as opposing muscle groups, strategically to get the most out of the workouts. Then the workouts end with an Energy System Development, also known as the “finisher.” This is where you will get in your cardio, which makes these HIIT training.