Unlike many machines at the gym, the cable pulley has stood the test of time. That's because the cable pulley and cable crossover machines are some of the most versatile pieces of gym 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. It’s easy to almost ...

Most lower back pain is caused by poor posture, which can be fixed with core-strengthening exercises. The best exercises to relieve lower back pain include planks, squats, and core work. More ...