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 ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? A glute-hamstring developer, commonly known as a GHD machine, is a large, ...

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 ...