Strength training is all about boosting muscle size and strength. You can use a weight bench to help you get a better strength training workout. No wonder many fitness enthusiasts use this equipment ...

The back extension is a versatile exercise that can be performed virtually anywhere. It can be used as part of a training program to build strength or a rehabilitation program for injury recovery.

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The upper back is an ...