1st time squat check 110Kg

[Patchy]

Hello coaches,

I've been struggling abit recently with my squat especially as the load has increased. The main issue I have at the moment is keeping my lumber in thoracic extension. As a consequence, my left shoulder has developed pain that radiates down to the elbow (I think caused by thoracic flexion, shoulders rounding and elbows driving up on the ascent. I've found the following articles very helpful but not sure if I missing something obvious that could be the cause.

Preventing Elbow Pain in the Squat | Nick Delgadillo
The Elbow Problem | Jordan Feigenbaum

I've reduced my working weight from 125kg - 110kg. It's still challenging to keep that upper back flat!
The camera height is just slightly above hip height but I would really appreciate any advice/cues I could use to fix this.

YouTube

Many thanks!

[Patchy]

Sorry, not lumber obviously.

[Jeff Illingworth]

Narrow your stance about half of one foot's width. Read and apply the thoracic extension article. Work on getting your wrists straighter. When you start your ascent, don't shoot your knees back. Keep them where they are (you may need a tubow for awhile).

[AndrewLewis]

+1 for Jeff

[Matt Stacks]

Hello coaches,

I've been struggling abit recently with my squat especially as the load has increased. The main issue I have at the moment is keeping my lumber in thoracic extension. As a consequence, my left shoulder has developed pain that radiates down to the elbow (I think caused by thoracic flexion, shoulders rounding and elbows driving up on the ascent. I've found the following articles very helpful but not sure if I missing something obvious that could be the cause.

Preventing Elbow Pain in the Squat | Nick Delgadillo
The Elbow Problem | Jordan Feigenbaum

I've reduced my working weight from 125kg - 110kg. It's still challenging to keep that upper back flat!
The camera height is just slightly above hip height but I would really appreciate any advice/cues I could use to fix this.

YouTube

Many thanks!

For the record, lumbar extension and thoracic extension are two separate things.

[Patchy]

Narrow your stance about half of one foot's width. Read and apply the thoracic extension article. Work on getting your wrists straighter. When you start your ascent, don't shoot your knees back. Keep them where they are (you may need a tubow for awhile).

Thanks Jeff, I might have been overdoing the hips cue, as they are shooting back (aswel as knees) on the drive up.

[Patchy]

For the record, lumbar extension and thoracic extension are two separate things.

See first post after OP, thanks though