Kembudo-Kai Kempoka said:
Back to the "can you cite that?" garbage, eh? Do you know how many double-blind, RCT's have been conducted around the basic knee-jerk reflex to validate it as a measure of neurologic integrity? None. Zip. Nichts. Nada. Nein. Some people have brisk reflexes who are in dire shape; pristine athletes in the peak of health may have none. Yet, we know enough about neurology to recognize it as a sign of pathology in certain presentations. Oh yeah...that dickens of a word; context.
Some basic reflexes, and how we can measure them or screw with them.
Righting reflex: Eyes provided data to the brain, which rights the skull to a visual horizon. Look down the street without straining: This is the most neutral position for the skull and neck in relationship to each other (nope...sorry, don't have a citation; nor do I have the desire to hunt them down). Incidentally, it COMPARATIVELY is "chin up" compared to what most folks do when concentrating, which is to tuck their chins, and look out through the orbits with the eyes COMPARATIVELY looking up.
Tipping the chin down into partially flexed position creates subtle transient pressure on the nerve roots by closing down the neural foramen (particularly in flexion with rotation...which we happen to be in when we are turned sideways at the body but looking at an opponent, as in a neutral bow or sideways horse).
Experiment (I do this regularly to make a point about posture to my patients): Get a Jaymar dynamometer. It measures grip strength. Get a mean on 3 grips standing in a neutral position, staring of to the horizon (chin up...not "looking up", but not tucked either). Now, look down wih the chin, keeping the eyes looking off to the horizon. Take 3 measurements, and get the mean. On MOST of the population (don't inform them why you're doing this in advance...just do it, get the data, and see if it supports a null hypothesis) you will see a notable difference in a reduction of grip strength in the chin-tucked position.
Odd thing: It will also effect dysdiadochokinesia tests of the lower extremities. Osteopaths would say this was due not to neural foramen closure, but rather to stretching of the dura around the brain and spinal cord, effecting blood and nerve flow through the entire body. But, of course, there are no RCT studies to prove or disprove it. Just as there are none to support or disprove Chinese martial arts concepts like a "guideline" (and yet, we see it's effect on position in gung-fu, and health in TCM).
To be fair...if you're going to demand citations for unsubstantiated, esoteric or theoretic constructs offered by others on this forum, you should restrict yourself from making counter-claims that are just as unsubstantiated, without supporting research evidence. Did you require citations on the biomechanics of gait before learning to walk? Without them, surely your feet will not work. Just don't tell that to the infants curently busy working out how to put one foot in front of the other...might mess up their whole life.
I gotta get back to the hospital. The medical dieties, using their best methods of scientifically-proven care and intervention, are killing my father in law with un-thought out uses of meds, out of the context of the research of those meds, and the side-effects of these meds clashing, and causing more silly stuff to go wrong. But hey; they got research to back 'em and funding to inform them, so they must be right.
Regards (and offline for a spell, so hate mail will likely go unresponded to),
Dave
Thank you for this response Dave. I appreciate you taking the time to explain the WHY behind some of the things that are being said.
My own personal frustrations with this and other threads is that it seems often claims are made, but no reasoning is given along with the claim. I am not asking for scientific journal references, but just a little bit of the reasoning behind what is being said is helpful.
When someone just claims something vague like "body indexing in XYZ stance with your chin and hands in XYZ position is wrong, and leaves you in a weak and vulnerable position that will cause you all kinds of problems", but they don't say WHY this is so or just what the hell they are talking about, I have a hard time swallowing it, especially when we are talking about very minor differences in positioning.
I am still hoping that someone will give a clear, plain English description of what is meant by INDEXING, when used in these discussions. I keep seeing the term "BODY INDEXING" being tossed around, but again, without any clear notion of what is being said, it is meaningless to me.
I am always hoping to gain some insight from these discussions. My position is: if you make a claim regarding a better vs. worse way to do something, especially when the only difference is in the very minor details, then just explain it. I want to learn something, and I am giving anybody a chance to convince me of the truth of what they are saying. So please, take a moment and convince me. Don't just throw out jargon that those of us who have not studied the same stuff won't understand, and then expect that to suffice. Again, I am not expecting references to medical journals. I am an intellingent, well educated person and I have a high capacity to reason things out. If you can explain something in a way that makes sense to me, then OK, i'll be convinced. I don't need citations to prove it to me, because I understand that much of this stuff, especially within the context of the Martial Arts, has never been studied and reported on in that manner.
Only a couple posts on this thread, including this one, bothered to give a glimpse of the reasoning behind the claims that were made. Many posts consisted of a simple "no, you are wrong" kind of answer to a prior post. This helps no one. If the prior post was wrong, please explain why.
Maybe some of this stuff was explained years ago on Martial Talk, prior to my own membership. Maybe some of the people who have been around for that long get tired of saying it over and over. Well, most of us probably don't have the time to search out all the old threads in hopes of finding the spot where a particular point was defined three years ago, in order to understand a thread that is happening today. Without some explanation to the claims being made, I remain unconvinced. But with a convincing argument, I will be convinced.
Once again, thank you for this post, it is appreciated.