Trouble Building Abs...
Basically, I need some advice about working my abs. For the last 8 weeks or so, I have been doing weighted crunches (with 15 kg on my chest), just about every day. I do over 60 crunches in each set. My problem is, that NOTHING has developed. I'm only a 32 inch waist so there is no body fat covering them. Apart from my abs becoming slightly more firm, though it's hardly even noticable, nothing has deveoloped at all. I do them til I'm sick, and take only 20 seconds rest between each set. I know abs take a few weeks to develop, but this is ridiculous. I'm working my guts off for this, and I'm not getting any results. What's going wrong??