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 ...

A PT explains what these numbers actually mean, and why quality reps and proper form matter more than chasing high totals ...

"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 ...

A simple yet powerful movement widely recommended by U.S. trainers to target the lower abs, improve core stability, and ...

For the best experience, please enable JavaScript in your browser settings. The basic crunch is an excellent abdominal strength training exercise to work your upper ...

Master these classic core exercises (they're not the same!). Javier Zayas Photography/Getty Images If you’re a fan of core exercises, chances are both sit-ups and crunches are a staple of your workout ...

If your goal is to flatten your stomach for the summer, you must do more than crunches. Developing a six pack requires a combination of proper eating and cardiovascular exercises. Crunches alone will ...

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 ...

"Trainers—myself included—often cue supine spinal flexion because it gives such a satisfying burn and you can really feel like you're doing something—and I find that it's actually helpful with posture ...

The basic crunch is an excellent abdominal strength training exercise to work your upper abs. However, done incorrectly, crunches can give you backache, put strain on your neck and create tension in ...