Brie Larson shows off the muscles she gaining in nine months of training with a video of her pull-up abilities Julie Mazziotta ... and prior to joining PEOPLE worked at Health Magazine.

An underhand ... The pull-up mimics the pulling motion; all you need is a pull-up bar. Instead of pulling the bar down, you’re pulling your body weight up. The pull-up works the major muscles ...

Strong Women trainer Emma Obayuvana demonstrates how to strengthen your lat muscles to help you do a pull-up in this quick 10 minute workout. Pull-ups are arguably one of the toughest bodyweight ...