Lee Haney’s back was the factor that led to his 8-year-long Mr. Olympia reign. Aspiring bodybuilders or fitness enthusiasts, ...

For lower back and glute strength, master the art of hip hyperextensions—here’s how. Undrey/Getty Images Hip hyperextension exercises are an important, if often tricky, workout move that involve ...

A strong back isn’t just about looks—it’s the key to better alignment, fewer injuries, and smoother movement in everyday life ...

Understanding the functions of all the muscles in the back is complex, but training them does not have to be. The muscles of the back help us do everything from standing up straight and opening doors ...

Arm day, leg day, ab day—these are the familiar pillars of strength training. But what about lower back day? Our lower backs are often overlooked, yet they're a crucial part of fitness. Many of us ...

Most of you know that training your upper body provides endless benefits, from improving your posture to increasing your metabolism. You might think of individually working your arms, shoulders, chest ...

A broad, well-defined back is a cornerstone of any well-rounded physique. But that’s not the only reason to pump up your posterior—it’s also a critical way of improving posture, reducing back pain, ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

Several studies describe that in addition to the thoracic and lumbar muscles, the Latissimus dorsi (LD) and hip extensors contribute during trunk extension performance. [28,30–33] These findings ...