Damn! Brie Larson has not been playing around when it comes to working out. We knew that she was hitting the weights hard as she trained for Captain Marvel, and even though filming has wrapped, it looks as if Brie has come to love strength training.

In the video, Brie can be seen doing a resistance band pull-apart. The move looks simple, but your back muscles will be fatigued after a few reps. Not only is this exercise great for your back, but it's also great for opening up your chest and shoulders, which can become tight from poor posture and sitting at a desk all day.

If you're looking to strengthen your back and improve your posture, you've definitely got to add this move into your workout routine.