Flat Abs Fast: The Core-Strengthening Workout
How do you create the ideal belly-flattening routine? You start with a short list of exercises that have been proved in the lab and then hand them to a fitness pro to give them a little twist.
"These nine moves not only work your core from the front, back, and sides, but they are also adjustable to any level," says Chelsey Korus, an instructor for YogaWorks studios in New York City, who adapted this seriously cinching session for FITNESS. Read more here:
