22 Ways to Work Your Abs Without Crunches
How to get a 6-pack...I tried this and was so sore the next day
Build endurance and speed while burning major calories!
Planks are better than crunches for working those abs. Here are 8 plank variations to try!
4 Simple Moves for Flat Abs! | Health.com
Get a ballerina's lean body by following the same workout Natalie Portman did for her role in The Black Swan