Crunches and situps are both ab exercises that target your core, but they aren't the same. Crunches work the upper abs and situps target the full core and hip flexors.

Crunches, teasers, planks, and body-weight squats are some of the best stomach exercises for stronger abs. A strong core improves balance and posture.

Williams also says she finds it easier to progress her core exercises when using weights. When a move starts to feel easy, ...

You don't need planks to build powerhouse core muscles. The crunch clapping exercise strengthens your abs without weights, and a personal trainer explains how.

Learn about crunches versus sit-ups, including the muscles they work and how to perform them properly. Plus, why other core exercises are actually better.

Bye, regular crunches. Bicycle crunches are a more effective exercise to tone your entire core at once.

The reverse crunch is a simple core exercise that targets those hard-to-hit lower abs — without straining your neck and back.

Your abs are also one of the most important muscles in your body and having a stronger core will help your strength and your ...

Fifty crunches a day really is nothing in the scheme of things. Each day I spent no more than a solid minute in the crunch ...

You don't need crunches to get a flat stomach. You need full-body workouts that utilize multiple muscles to learn strength, and squat, and define your midsection.

I did ab roll-ups everyday for a week - here's what happened when our fitness editor did this Pilates core exercise.

Most people swear by cardio or crunches for fat loss, but a fitness coach reveals a surprisingly simple exercise that could ...