Add Yahoo as a preferred source to see more of our stories on Google. Ah, the plank. It may just be one of the most intimidating exercises. Anyone who has shook their way through one knows that the ...

Some of the best exercises are only a minute or two but are the most grueling. They will make you sweat, shake, and possibly collapse at the end, but they will tone you up, build muscle, and whip you ...

Bicycle crunch Like the plank, the bicycle crunch works all of your major core muscles. To do this exercise, lie on your back with your feet on the floor and your hands behind your head. Contract your ...

A strong core is the engine that drives every physical movement you make. It’s the critical link between your upper and lower ...

Why one trainer calls the plank variation "no joke." ...

(CNN) — If you’re like most people, when you hear the word core, you probably think of six-pack abs. But your core is so much more than that — it’s the powerhouse that stabilizes, supports and moves ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? I'll admit, I sometimes sigh when an instructor cues up a plank. I know, they ...