I'll also add that before embarking on a serious squat regimen one should work first with a trainer (or friend with good technique) to develop proper squat form

I'll also add that before embarking on a serious squat regimen one should work first with a trainer (or friend with good technique) to develop proper squat form. Squatting is one of those gym exercises that is often underestimated in its difficulty and is routinely done incorrectly, leading to injury.