Add Yahoo as a preferred source to see more of our stories on Google. Most people don't feel excited by the idea of holding a plank. Of all the workouts out there, it may just be the most brutal. And ...

If you’ve ever tried them, you know side planks are challenging­—even more than regular planks. But they’re a critical move, says Keli Roberts, an exercise physiologist with the American College of ...

Forget crunches and sit-ups. One of the best ways to blast your core is the oh-so-simple plank. When performing a plank with good form, you’re working your midsection, shoulders, chest, lower back, ...

For most of us, planks don't typically last a long time. Your core starts shaking, your arms start wobbling, your abs are on fire — about 30 seconds in, your body is yelling at you to wrap this up.