Are you f**king retarded??! It says in your sig that you are a personal trainer. Do you not even know the human body? How the hell did you get your personal trainer certificate? Wait do you even have one? THERE IS NO UPPER OR LOWER ABS GET THIS THROUGH YOUR THICK SKULL. The abdominal rectus known as the "abs" is a SINGLE SHEET of muscle. There are no "upper" or "lower". I JUST explained this.
ANYONE who has any knowledge in bodybuilding KNOWS that abs are made in the KITCHEN, NOT in the gym. Skinny little asian kids who weight 100 pounds have 6 pack abs that show when people who work out their abs with 100s of crunches, use insane ab machines dont' have abs that show BECAUSE their body fat is covering over their abs. What some people don't know is that EVERYONE has 6 pack abs. They may be made up of weak muscles but they are there. The only thing stopping from being shown is the body fat.
I AM NOT SAYING THAT DOING VARIATION OF AB WORKOUTS WILL NOT GET YOU SIX PACK ABS. Working out your abs do make your abdominal muscles get bigger so it will help them come out more but the FAT will still be there to cover it up. However i have only been doing 3 sets of 15 reps of decline sit ups and i have absolutely AMAZING abs that are shown perfectly along with obliques on the sides. Why? Not because I do insane amount of situps, because i do proper cardio and eat healthy food that keep my body fat down.
I am sorry that i have used profanity and may have offended soem people but Jesus, this guy's suppose to be a TRAINER and he doesnt' even know that the abdominal rectus is just ONE sheet of muscle!! Unfrigginbelievable.