This is the most popular exercise to develop the upper leg. It works the Quadriceps (thighs), the Hamstrings (back of leg) and the Gluteus Maximus (butt). The drawback to the Squat is that the main development occurs in the early part of the rise and that it never truly works the highly important vastus medialis muscle. How to do: 1. Get in a comfortable upright stance … [Read more...] about Glutes Squats