SPEAKER_01 37:25–39:59
So Vikram says, can you explain why some people go into what looks like cervical flexion at the bottom of a bench press? Yes, I can. And actually, it is flexion to a degree. So let's talk about this for a second. So go back and watch the arching video that we did on the bench press earlier this week, and you'll get kind of the same representation in the neck. So when we're talking about bench pressing, power lifting, et cetera, if we don't want any turning, we want high compressive strategies, we want lots of concentric orientation on the outside squeezing in. So in a bench press, the way that most people are going to try to stabilize their neck and their head against the bench is they're going to create an upper cervical flexion if you will. Okay, so it's a rotation of the cranium of your skull on top of C1. What that does is it pulls the high-end bone upwards as if you were swallowing. The great thing about that is it takes your airway, which is normally kind of roundish, and it compresses it into a flattened state just like when you're flattening the rib cage with your pecs and your upper back and your lats and things to create this strong exhalation compressor strategy for strength purposes. And so now we've got a very, very stable neck. As people lower the bar to their chest, they maintain this position. And so just like kind of doing a sit-up for your neck, the musculature on the front side that is pulling the high-eyed bone up and compressing your airway and making your neck go from a cylinder to this compressed sort of wide-looking neck will actually lift the head up. And so you'll see people that have never done breathing activities before or reaching activities and you'll see a tremendous amount of this sort of rectus abdominis effort as they try to use it as an exhalation strategy. You're seeing the exact same thing in a bench press. And so again, from a performance standpoint, it creates high levels of compression. It prevents air from escaping the body, so now you're squeezing this compressed air and it contributes to force output. So bench pressing is your thing and you want to maximize that, then you better be able to compress your neck. Now, secondary consequences—always secondary consequences—is something that seems good. You're going to lose lower cervical rotation. You're going to lose dorsal rostral expansion, which is going to affect your ability to move your shoulders and your lower cervical spine. You may also create eccentric orientation in the suboccipital area. So now you're going to get a little bit of extra upper cervical rotation as a compensatory strategy. And again, if you're willing to live with that, if you're okay with that, you're the adult—you get to make that choice.
cervical mechanicsbench pressrespiratory bracingcompensatory movement