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 ...

Our core muscles are essential to everyday movement; we need them to walk, sit, and to lift and carry things. If you don’t do them right, you will likely feel tension in your neck, so be sure to use ...

If you’re looking to tone your core, the bicycle crunch is a good addition to your workout. It has the benefits of the standard crunch, but it engages additional core muscles — working your internal ...

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 ...