Add Yahoo as a preferred source to see more of our stories on Google. Now, before you go grabbing that pump, you’re going to want to make sure you have the right ball size on hand. To do that, all you ...

Nothing will humble you like an exercise ball. Working with an exercise ball can also help you improve your sense of your body in space, a.k.a. proprioception, Jeffers explains. “Stability ball ...

Stability balls—also known as exercise, fitness, or Swiss balls—are a home-gym staple. But more often than not, they end up sitting useless in the corner of spare rooms, deflated in closets, or ...

• Start lying on your back with your arms straight, holding the stability ball above your head and your legs straight. • Lift your arms and legs at the same time while lifting the stability ball.

Building strong, muscular quads is best done with a combination of compound exercises—squats, lunges, leg presses—and isolation work, such as leg extensions. Tack on some powerful plyometric moves, ...

The reason runners benefit from Bosu ball exercises? While you can use it to perform exercises like Bulgarian split squats and lateral hops—moves that strengthen prime running muscles—it also adds an ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. It’s time for a little ...

Now, before you go grabbing that pump, you’re going to want to make sure you have the right ball size on hand. To do that, all you need to know is your height. If you’re 5’5” or shorter, stick to a 55 ...