Use these 28 workouts to flatten your belly: https://flabfix.com/your-routine

In this video, I will show you how to do high crunches for abs correctly. This one of the best crunch variations because it has a wide range of motion.
You have to lift your upper back off the floor to get the most out of high crunches.
Do this exercise if you want abs and a strong core. Maintain a full range of motion while doing high crunches.
That's how you do high crunches for abs.