thanks for the article - just started some knee twinges so I think I need this. my knee doesn't cave like the pics shown but I think there could be some inward pronation

I do have bands though to use during light squats - it cues you to keep knees out.

I had read about this but I was wondering - what sort of a band, Sara? If it is an elastic band (and i could stitch up some elastic for that, i guess) how wide should it be?

and how do I ensure that the knees continue to track the toes and don't widen more (in an effort to keep band taut).

Thanks Sara, I'll look it up. So they would be of the same diameter (for want of a better term) - no matter who the squatter is? From what it sounds, the function is more of a cue or a reminder to keep the knees alert, yes?

If so, fix it before you hurt yourself.

I wish this article was written a few years ago. I was having knee pain while squatting, and couldn't figure out why. Eventually, the knee pain started happening while doing normal daily activities. I almost gave up squatting for good. I finally figured out that my knees were caving in at the bottom of my squat and figured out how to fix it.

Thanks to Bret Contreras, you don't have to learn the hard way like I did: http://bretcontreras.com/knee-valgus-valgus-collapse-glute-medius-strengthening-band-hip-abduction-exercises-and-ankle-dorsiflexion-drills/