I have been talking extensively with strength coach and PT Dr. Charlie Weingroff about the concept of "packing in the neck", especially in regards to aggressive hinging movements. (I have an interview with him on my site for those who want to know all the fancy nitty gritty scientificals behind this...)
I wanted to know if anyone here as experimented with this technique, and if so - how it feels to you and the results you have obtained.
I'll attach a video and briefly summarize why Charlie and I believe this to be an important technique for those who are unfamiliar with it
"Packing in the neck" is actually a capital movement, not cervical - the primary purpose is to maintain neutrality of the upper lordotic curve - and avoid cervical extension.
What happens in the c-spine typically will trickle down to the lumbar - therefore lifting with excessive amounts of cervical extension often results in hyperlordosis. Charlie and I believe this to be "less than optimal" due to the fact that when you operate in an overachred position, you are in a position of structural support (bony approximity - meaning your disks are now closer to gether). As Charlie stated when he first wrote about this - this bony approximity sends a signal to your brain saying "hey we got support from our bones down here, so we don't need as much inner core" - and this leads to the inhibition of your inner core stabilizers (TVA, multifidus, longissimus, diaphram, pelvic floor, pick your favorite...). In simpler terms, overarching/hyperlordosis means less core activation and "authentic stability".
Cervical extension often puts the neck under load and inhibits your deep neck flexors (sternoclediomastoid, scalenes, etc ) - which are designed for quick changes in head position - not for bearing weighty loads. Hyperlordosis in C-spine may also leave the weight hanging off your C-4/C-5 region. Again, IMO, and Dr. Weingroffs, we believe this to be "less than optimal".
This has become quite a controversial topic for some - so I would love to gather some feedback from anyone who has tried it, and if you have not worked this technique and would like to start doing so, then I hope this thread will be able to help you. I have an extensive blog post on this topic as well.
Here is a video demonstrating what the form looks like - if you look closely, it almost looks like I have a mild amount of capital flexion and cervical retrusion - both of which may be decent clues for you to find this position.