Jennifer Lopez showed off her toned abs ahead of her Vegas show inspiring many women to strengthen their core Fitness expert ...

Lie on back with arms extended toward the ceiling in-line with shoulders and legs bent to 90 degrees (knees above hips). Pressing lower back into floor and engaging abs, slowly extend and lower right ...

It’s a common fitness dilemma: You’re banging out crunches and planks week after week but still not seeing the strength and muscle tone you want in your lower abs. That’s a sign it’s time to switch up ...

Ready to go beyond crunches, Russian twists, and planks? Try this 20-minute core workout programmed by a trainer for an advanced six-move core workout.