Squat, bar not straight when going down

[thescreensavers]

I started Starting Strength and am quite motivated.

I am working out with a friend and he tells me the bar is twisting a bit.

I cannot feel this at all like I can with weight on feet or too far forward and back...etc

So when I start going down the Bar is straight on my back in the pocket on top of that bone like Rippetoe says, elbows back. As I move down the right side starts to move horizontally. So if looking from above, instead of the bar being 180 degrees its moving to like 175 degrees. Not much but enough for my friend to see and I am clueless as to why its happening.

 

[SociallyChallenged]

Since your shoulders and core should be relatively stationary, it's probably coming from the lower kinetic chain. My guess is that your knee is caving in slightly - that's something you can control with your hip. A good cue to feel for is to keep the weight of your feet TOWARD (but not only on) the outside of your foot while pushing your knees outward as you descend and ascend.

 

[thescreensavers]

Thanks, I will try to concentrate on that and see what happens.

Though I already try to get my knee parallel with my toes in the bottom position, but I don't really know if my knee is caving in, maybe it is. Ill have my friend take a look.