The gluteus maximus muscle is a major player in hip extension. Despite its involvement in walking, running, skating, and pretty much all types of upright movement it remains largely undeveloped in most bodies. This Lak of strength sets it up for overload injuries like trigger points and myofascial pain. These trigger points not only cause glute and hip pain but are also a common source of sacral pain as well. The best prevention for these problems is strong glutes!!! So stop sitting on your butt, and start strengthening it with resistance training.