According to a Pilates pro, the proper form for crunches doesn't involve crunching up with your hands behind your head because it can lead to neck pain. If someone tells you to drop down and knock out ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." If you've completed a core workout—or 100 of them—over the years, you likely know what crunches are ...

Looking to amp up your core workout with a move that really targets those stubborn lower abs? Enter the reverse crunch. This exercise zeroes in on those hard-to-reach lower abdominal muscles, helping ...

Anyone who hits a gym regularly would have heard of bicycle crunches! They are a classic core-strengthening exercise that is a favourite of many trainers. Why? Because it makes you feel the burn in ...