Lifting the chest on squats?

[tfranc]

Not everyone is malanichev. Most people slow down at some point during their 1RM. It didn't look too bad at first, and I think it would looked relatively normal if he had stayed the course. It didn't get weird until he dropped his chin. That's when the bar stopped entirely, killing his momentum. At that point the only way to finish was to "sneak" the hips into extension by shifting forward and raising the chest.

post hoc ergo propter hoc

His chin had nothing to do with it. I used to literally do the EXACT same thing on my squats as this guy until I realized that it's incorrect form. He... we... tried to get our back angle steeper at the top, thinking about raising the chest, and thinking about extending our hips way too early. The result is the knees shoot forward, you lose tension in the hamstrings and glutes/basically take them out of the movement, which is inefficient, and try to scoot the hips under the bar. You really do squat from the sacrum. No question on how much better it feels when you do it right.

[Mark Rippetoe]

One does not squat with one's chin.

[Giri Kotte]

This is actually opposite of what is happening in the video.

I try increasing the back angle around half way up, the hip moves forward automatically.

[curlrackhog]

One does not squat with one's chin.

Crossfit: "Challenge accepted"

[Tony1214]

That's 100% correct!! As soon as it got heavy and I felt my upper back pressure I started thinking lock out, instead of stay in my hips. Also when you do get the hip drive right the weight feels 15-20% lighter and everything feels better.
Great comment thank you!!

[Tony1214]

Yep that's exactly what I did. Just need to stay in my hips the whole rep...if only someone would write that down in say a book or something...lol thank you again for the help!

[Dave Hahn]

Because YouTube doesn't provide a convenient tool to either trim videos or remove audio tracks.

Oh but it does provide a way to trim. I use it all the time. Video Manager -> Enhancements -> Click the trim button.

[Mark Rippetoe]

I try increasing the back angle around half way up, the hip moves forward automatically.

And, the hip bone's connected to the ... knee bone.

[Mark Rippetoe]

And the knee bone's connected to the ... ankle bone.

[Mark Rippetoe]

And the ankle bone's connected to the ... foot bone.