"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." THE BACK extension, that time-tested move for building back strength, has been around the block. But here ...

WHEN IT COMES to training your lower back, it doesn’t get more straightforward than back extensions. This old school classic is a bit more nuanced than you might think, however—and that makes ...

It appears that patients with tension-type headache (TTH) have relatively weak neck extension muscles, a new study shows. Researchers found that these patients are 26% weaker than controls with ...

1 Division of Surgery and Interventional Science, University College London, London, UK Background Concussion is one of the highest burden injuries within professional Rugby Union (‘rugby’) and comes ...