Is there a dumbbell ab exercise that's just as good as the machine crunch?
I normally only train my abs with the machine crunch and hanging leg raises, but today I couldn't make it to the gym, so I have to work out at home. I don't want to do a typical ab routine since they're pretty useless. I have a pair of dumbbells at home and a bench, and I was wondering if I could do something with them. Is there any exercise?