What Is a Glute Extension aka Hyperextension? The glute extension, or hyperextension, is an exercise that's performed on a back extension bench. This bench sits at 45 degrees, has ...

Extensor muscles are attached to the back of your spine and help you stand up and lift objects. Flexor muscles in your back help you bend forward, lift, and arch your lower back.

Discover the best back extension machines of 2024—expert reviews & buyer's guide below. These top-rated models will aid in targeted lower back and glute gains.