Check out my full article on how to squat correctly at http://jump-science.com/how-to-squat-correctly/
Squatting is a very hard movement to master. Very few people squat well, because most do not really know what a good squat position looks like. The typical instructions are something like "shoulder width stance, feet straight forward, push the hips back, sit into the squat, keep your knees over your feet, keep your chest up." That set of cues DOES NOT WORK! I'm doing my best to set people straight on squat technique.
