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.

You don't need planks to strengthen your deep core muscles — try the 'tuck crunch' bodyweight exercise instead Forget sit-ups — build a stronger core and improve your posture with this 15 ...

Crunches are more of an isolation exercise using less range of motion, meaning you’ll only lift your upper back away from the floor, so the main focus will be on the abs as you flex and extend ...

With that in mind, one of my favorite “deep core” exercises to build stability and bulletproof abs is the tuck crunch and hold. It looks simple — too simple.

Crunches are more of an isolation exercise using less range of motion, meaning you’ll only lift your upper back away from the floor, so the main focus will be on the abs as you flex and extend ...