How to Perform Effective Ab Crunches

There has been some controversy over ab crunches. Do they work or not? The answer to that is, "It depends". As I've been stressing throughout the site, you cannot tone your stomach and abs without an overall change in your diet and full body exercise.
And if you're trying to get a six pack, you need to get your body fat down to around 10% or less.
You can't keep the weight you've gained in one area of your body and still expect to get a six pack.
Your body doesn't work like that.
You also cannot eat anything you want and finish off with ab crunches to work off all the fat you consumed for the day. It doesn't work that way because you are adding muscle and fat to your middle at the same time which can cause your stomach area to grow even larger.
You've got to work on changing your eating habits (lots of protein and less fat) and then you'll find that the crunches will be more effective.
Also make sure that your ab crunches are done in small quantities of controlled movements with short rests in between.
While the exercises below will help tone your middle. If you're really serious about getting a solid six pack