Crunches only target your abs, so they are not a functional core exercise. Crunches can be hard on your back and neck, and may not be safe for everyone. If you are looking to lose belly fat and get ...

This three-minute core series from Barry's Bootcamp trainer Allie Cohen is just what you need to amp up your workout for bikini season. Allie loves tacking this ab-burning circuit to the end of her ...