"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 ...

For lower back and glute strength, master the art of hip hyperextensions—here’s how. Undrey/Getty Images Hip hyperextension exercises are an important, if often tricky, workout move that involve ...

"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 ...