WHEN IT COMES to training your lower back, it doesn’t get more straightforward than back extensions. This old school classic is a bit more nuanced than you might think, however—and that makes ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." And when it comes to choosing one, quality matters. We rolled up our sleeves and got to testing and ...

With so much focus on the upper body and core, it's easy to forget to tone your back muscles. After all, you want to look ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." THE BACK extension, that time-tested move for building back strength, has been around the block. But here ...