The sit-up is still programmed, but many other exercises can strengthen your core muscles just as well, if not better. It’s a ...

This is great for beginners who need to train themselves ... a few or do them all as a routine for a well-rounded core and ab workout. Bend your knees and place your feet flat on the ground.

Dwayne "The Rock" Johnson is not just a Hollywood superstar; he's also famous for his jaw-dropping physique. Over the years, ...