How to Do Machine Back Extensions

Back extensions and hyper-extensions work the lower back muscles, the erector spinae, which appear to play a role in maintaining a strong and pain-free back.

You can do back hyper-extensions on a mat on the floor or on a fitness ball, but a specialized gym station is available in many gyms. It's often called the hyperextension bench. See how it works here:

How to Do Back Extensions

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