Originally Posted by
John Hanley
I see three clear issues:
1) when the weight gets heavy, your squat turns into a 2 part, goodmorning-esque movement. Your hip angle stays closed way too long in the concentric phase. Try fixing your gaze a few more feet out and keep your chest up when you drive out of the hole. I also suspect your trunk is softer than it should be. You have to brace your trunk harder than you think possible,
2). The front-angle video clearly shows your knees buckling in. Maybe you've got weak external rotators/aBductors. Whatever the case, keep your knees shoved out during the ascent. Again, more than you think you should. Really shove them out.
3). On several reps, your knees shoot forward about 1-2" as you're coming out of the hole. You're losing so much power doing that. As a result your balance & bar path get totally out of whack. Pause your video at 46 seconds. See where the bar is in relation to your mid-foot? WAY forward. Review the section on "master cue" in SS.
The good news: your premature stall is most likely the result of these poor mechanics. Your squat is very inefficient (and not so good for your lower back). Invest in a few hours with a good coach...then buy shoes, then a belt.