To speed up your metabolism, your workouts must strengthen your muscles while spiking your heart rate-and of course, you need to do them regularly. These routines don't have to last long: in fact, ...

Planks and jumping jacks are perfectly fine workout moves. But if you combine the two together, you can actually get an even better total-body workout. Meet: the plank jack! Plank jacks involve ...

Add Yahoo as a preferred source to see more of our stories on Google. Plyometric exercises messier squat Plyometric exercises require you to push yourself to your maximum effort through quick and ...

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 ...

Core body strength is key for so many things; balance, posture and - a particularly popular one - building abs. The plank is probably the first move you think of when you want to do abdominal ...