You can say goodbye to sit-ups with this bodyweight exercise, which strengthens your core and hips without hurting your spine ...

"Combination lifts like pullups with knee-ups are one of the best ways to get a lot done in a short amount of time," Smitty ...

Kill two birds with one stone (dumbbell) in as little as 15 minutes using this trainer's abs and arms strength building workout.

Choosing the best exercise ball — one matched to your exercise preferences and needs — could be just what you need to rock your core into shape as part of a solid home workout routine. Experts say ...