There the thing. when i squat with 90%+ or my pr. My knees tend to collapse on the way up from the bottom. on the way down they are solid, the problem comes on the way up.
So, any of you knows an eficient way to fix this problem, i don't feel pain durin or after the workout, but i understand that this is bad form and an injury risk.
I squat low bar with a shoulder wide stance (after try various widths and bar positions i find out that this is my best).
Thanks for your help.