Back Squat Technique

[Tyson Wright]

I have the lovely butt winking problem when I do do ATG squats. Addressing this is my #1 priority. If I don't wink when my hips are at "parallel", should I focus on that depth until my issue is resolved? Thanks.

[Greg Everett]

Tyson -

are you sure what's happening is not just an acceptable reduction in lumbar extension (common)? or is it actually lumbar flexion?