How many of you spend long hours sitting in a chair at your job? The answer is, of course, most of us. For these kinds of people, and indeed for those who spend a lot of time standing, there are some forgotten muscles that need to be rediscovered: the buttocks!
Dr. Stuart McGill has even coined a term to describe this phenomenon: "buttocks amnesia." When you spend too much time sitting down, not only do your buttocks work less, but they also forget how to activate when you need them. And when they do not work well, it is the other parts of the body that have to compensate, for example the lower back.
The gluteus maximus is the largest muscle of the three muscles that make up the buttocks, and is the one that gives it its form. The middle and the small gluteus are the lateral ones, and are responsible for abduction and for stabilizing the hips.