Squat form check - Bar is a bit diagonal

[arpnmi]

I have some issues with the concentric portion of the squat. It isn't really causing any discomfort but it may be hindering my progress. Upon watching the video, I feel like my eccentric portion of the lift is fine but during the concentric portion, the bar path is a bit crooked. The bar actually "drifts" backwards from the right side. I am just not able to figure out what is causing the drift. And the issue is, it doesn't happen every rep. Since last week, I started using my right wrist to push the bar forward to stop it from drifting backwards but I don't think that's a safe thing to do.

I have attached 2 videos of me squatting for 5 reps at 265lb. I am currently at 290x5 which clearly shows that I am able to progress but I want to fix this issue.

This was my 2nd working set at 265: 265lb Back vs Side Squats comparison - Set 2 - YouTube

This was my 3rd working set at 265: 260lb Back vs Side comparison Set 3 - YouTube


I have also attached & hyperlinked 4 screengrabs (2nd set - 1st rep) with a line drawn-in connecting the bar to the mid-foot for all 3 contractions. It looks like the eccentric phase is fine. The angle between the 2 lines was just under 1 degree. Same with the isometric too. The angle for that was around 1.5 degree. I have attached 2 images for the concentric portion of the lift. In the 1st image, you can see that the angle between my mid-foot and the bar is around 12-13 degrees in the 1st quadrant. And in the 2nd image, you can see that if you draw a straight line from the bar down to my feet, it's actually over my heels.


I even tried dropping the weight but the issue still remained. I actually even squatted with just the PVC pipe and the issue was still there which led me to believe that it could be because of asymmetrical hips. So I had a friend record me from the back.

This was my 2nd working set at 260: https://www.youtube.com/watch?v=PLZlF7JdnuY
This was my 2nd working set at 290: https://www.youtube.com/watch?v=cB7y19fmja4

After watching the first video where I am squatting 260, it was really hard to tell if my hips were shifting to one side. I drew some lines and it looked like there was a very minor shift but it could be due to the unstable hands and shaky video.
Then after few weeks, I had my friend record me at 290. I think the shift here is more obvious and it let me to believe that this could be causing the car to drift backward from one side and forward from the other side.

Image 1: http://imgur.com/7275j9u
Image 2: http://imgur.com/xVPFvYh
Image 3: http://imgur.com/2vae2lV

What do you think could be the problem? Do you guys see anything that stands out? Is it something you would be able to help me fix?

Thank you,
Arpit

[Steve Hill]

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