"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 ...

When it comes to resistance gym machines, the back extension is underrated. Just ask strength and conditioning coach Andy Vincent. When I hit him up for which machine he believes is most effective for ...

Back extensions, hyperextensions, Roman chair extensions — whatever you want to call them, this back exercise is brilliant at strengthening the muscles along the back of your body, known as the ...

Strongway Gym Supplies has confirmed the much-anticipated return of its Leg Curl and Extension Gym Machine, now coming back once again for delivery. This dual-function piece of equipment has earned a ...

The hamstrings are my favorite muscle group. Hands down. Maybe it's because it's my biggest and best muscle group, most likely from years of hip-dominant compensation when I was dealing with over a ...