Originally Posted by slicksouthpaw16
I am 5'11 and i weigh about 168, so i am pretty thin. How often do you have to do them? I am also addicted to junk food as well, but I can definitely give it up. I have the pecks( i always have for some reason) and a very small stomach( no fat). I'll definitely try your routine though, sounds like a challenge too. I do about 300 sit ups a day and i can see that the abs are growing, they are just not showing.
If you do other exercises (i.e. working out your other body parts) then once a week will do. The key is to blast them though, not simply go through the motions.
Abdominals are muscles that recover quicker than other muscles, so don't take long rests between sets. Hit em hard and fast whilst you're carrying weights as I suggested.
Also, the key is not to do many sit ups but to do sit ups with a lot of resistance because that's what puts on muscle.
Same with something like benching for example. You don't get a big chest by doing sets with countless repetitions. You get it doing sets a low amount of reps with heavy-ass weights that tax you.
I'd say, if you do about 12 sets of about 12-15 reps (mixing in about 3 sets of standard crunches, 3 sets of crunches with your legs raised to work the lower abs in particular (see American Psycho for leg positioning, lol,) and about 3 sets whilst lying on your left and right sides to work your obliques, your abs will be mint.
Oh and **** that junk food off