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Practicing with Authenticity
To extrapolate from the above quote, patients love healthcare providers they can trust. One way to earn the trust of your patients is by practicing with authenticity. What does that mean, exactly?
What's Chiropractic Research Worth to You?
The Palmer Center for Chiropractic Research (PCCR), in celebration of its 20th anniversary, has announced it is spearheading a fundraising campaign to support chiropractic research.
The Zen Art of "One Point"
We were always told in our Zen Shiatsu training (by Japanese and Japanese American instructors) that our ultimate aim was to to find that "One Point." To be so focused we could touch just one point to transform Qi throughout a client's body.
Patient-Centered Care vs. Payer Restrictions: Your Ethical Obligation
Do you have an ethical obligation to evaluate your patients, make a diagnosis and provide evidence-based, patient-centered health care, irrelevant to the payer restrictions?
Do Some Good and Grow Your Business with Cause Marketing
Cause marketing is truly one of the best ways that you can promote your services as a acupuncture professional. Cause marketing refers to a type of marketing where a business partners with a non-profit organization to help bring awareness to a charitable cause.
More Chiropractors Required
An intriguing study published in the Journal of the American Board of Family Medicine examines how "chiropractic care affects use of primary care physician (PCP) services."
Getting a YES: An Effective Strategy for Overcoming Patient Objections
Patients make more excuses for declining care from an acupuncturist than perhaps any other type of doctor. Various reasons hold them back from making a commitment to care.
Help: A Need at Every Level
One of the great gifts of training in acupuncture is the ability to take good care of oneself. I recently had a bout of frozen shoulder — an inflammatory syndrome which can be debilitatingly painful and take years to resolve.
Fertility and Poly-Unsaturated Fatty Acids
Starting or expanding one's family is a major milestone. It's something that more and more people seek out health care advice and support for.
Improving Communication Between AOM and Biomedical Providers
How comfortable do you feel talking to Western medical providers? If you are like me, you may not feel as comfortable as you would like. Some of my interactions with MD's haven't been the fruitful steps toward integrative medicine for which I had hoped.
Nuts Reduce Risk of Heart Disease, Cancer and Other Health Problems
Several recent studies suggest regular consumption of nuts may provide a significant degree of protection against certain types of cancer, heart disease, possibly type 2 diabetes and some neurodegenerative diseases.
Surprising Reasons for Orthotic Efficacy
Clinical outcome studies show orthotics are effective in the management of a wide range of injuries, including plantar fasciitis, Achilles tendinitis and patellofemoral pain syndrome.
Practice Policy (Gone Bad): The Sign
Every once in a while, you see something and think to yourself, That's a really bad idea. Case in point: I went to see my medical doctor the other day. Just after being "roomed," as they say, the nurse checked my vital signs. Then she left.
Modernization of Chinese Medicine
Language – written, spoken, signed, or otherwise is learned as a means to express our individualized perceptions about the world around us. Language is designed to communicate our personal experiences.
Harvard Health References Flawed AHA Position Paper
In its special health report, "Stroke: Diagnosing, Treating, and Recovering From a 'Brain Attack,'" Harvard Health Publications includes information from the American Heart Association's 2014 position statement on cervical manipulation and cervical dissection – a statement the American Chiropractic Association emphasized in a letter to Harvard Health mixes "scientific facts with half-truths."
Change Lives by Supporting Chiropractic Research: Are You In?
The Palmer Center for Chiropractic Research (PCCR), in celebration of its 20th anniversary, has announced it is spearheading a fund-raising campaign to support chiropractic research.
The Short Leg Dilemma
When evaluating a new patient, it is common to note a relative shortening of one leg to the other. Some patients will even tell you they have one, and then pull out the store-bought heel lift they read about online.
Acupuncture Rising: From Acupuncture Anesthesia to Assisted-IVF, Part 1
Acupuncture's cultural and historical roots go back to the emergence of Chinese civilization. For more than 2,000 years, acupuncture needling has been continuously practiced on the largest population in the world.
A Chiropractor's Guide to Yoga
"Doctor, can I continue to do yoga while undergoing your care?" "Is it OK for me to go back to yoga while I'm getting my back treated?" "It is safe to start my yoga classes again after my neck pain improves?"
The Food Conversation: Nutrition and Your Practice
It's morning and your first patient rolls in with a triple espresso steaming in one hand and a frazzled, desperate look in her eye. "You gotta help me, doc, I am constipated unless I drink one of these, and I am exhausted and anxious all the time."
An Acupuncturist's View of Medicinal Marijuana
The use of cannabis for medical purposes is very controversial. Use as a panacea by physicians uninitiated to the proper application of herbal medicine, as well as an excuse for recreational use have greatly confused the issue.
News in Brief
Call for Abstracts Announced - Parker Las Vegas 2016; Logan Adds Doctorate Degree; New Role for Dr. James Edwards.
Dorsiflexion Dysfunction: Evaluation & Manipulation Techniques
Almost every condition from the foot to the hip can be attributed to the inability to dorsiflex the ankle mortice and other joints that participate in dorsiflexion. Let's start by understanding normal versus abnormal dorsiflexion.
The New Age of Communication
In the age of technology, everyone, including the patient, is seeking faster, easier ways to communicate. With a wealth of social media, blogs, websites and videos, we are constantly barraged with information – to the point of overload.
Oriental Medicine on the World Stage
"Let me win. But if I cannot win, let me be brave in the attempt." This simple, yet powerful statement was lived out time and time again by so many of the athletes from around the world during the Special Olympics World Games in Los Angeles.
Fish Oil: A Key Component of Positive Clinical Outcomes
Patients seem to be presenting with more complex problems, and many are responding to care more slowly or have completely unexpected results. Why?
Healing Trauma: Cultivating Resilience and Presence Through Mindfulness, Part 2
In the last issue of Acupuncture Today, the first part of this article introduced the topic of trauma and resilience, and their relationship to the autonomic nervous system response and the concept of the spirit being grounded in the body, and suggested the importance of mindfulness as a tool for healing.
November, 2008, Vol. 08, Issue 11
The Pressurestat Model Explains the Craniosacral Rhythm
By John Rollinson, D. Eu, CST-D; guest author for John Upledger, DO, OMM
The Pressurestat Model illustrates the mechanism behind the circulation of cerebrospinal fluid through the semi-closed, hydraulic craniosacral system.Originally defined by Dr. John Upledger and a team of researchers at Michigan State University in the 1970s, the model explains the palpable, rhythmic expansion and contraction of the craniosacral system.
The brain and spinal cord are surrounded by cerebrospinal fluid (CSF). This fluid transports nutrients, hormones and peptides. It removes metabolic waste and toxic substances. It serves as a shock absorber, floating the brain to counteract gravity. It even influences respiration and cerebral blood flow, among its many functions. Given all this, it's easy to see how essential it is for CSF to flow unimpaired. If an area of brain tissue is even partially deprived of optimal CSF motion and flow, that area will be forced into some degree of functional compromise.1
Cerebrospinal fluid is held within the dural membrane that surrounds the brain and spinal cord. This tough, watertight sac takes the shape of the interior of the cranium and intervertebral canal. Though dura mater doesn't stretch much, this fluid container is flexible and allows for CSF pressure changes. When pressure increases, the dural membrane expands, and the bones of the cranium and sacrum move along with it. When pressure decreases, the reverse occurs.
This filling of the craniosacral system is known as flexion, and the emptying is known as extension. During flexion, the head becomes wider transversely and shorter in its anterior-posterior dimension. The whole body externally rotates and widens. After flexion, this motion passes through a neutral zone on its way into extension, during which the head narrows and elongates and the whole body internally rotates.
Under normal circumstances, the craniosacral system proceeds cyclically through flexion and extension at a rate of about six to 12 cycles per minute. We can feel this rhythm at various places on the body because "this whole-body response is probably due to the pumping effect of the cerebrospinal fluid upon the motor system ... which causes a rhythmical tonification and detonification of the myofascial system in response to rhythmically fluctuating nerve signals."2
Tracing the Flow of Cerebrospinal Fluid Through the Craniosacral System
So, we have a hydraulic system that surrounds the brain and spinal cord. To understand how it is semi-closed, we must first understand how CSF enters and leaves the system. Within the ventricles of the brain, you'll find a capillary network - the choroid plexus - that produces CSF. In essence, blood circulating through the choroid plexus is "turned into" CSF, which then enters the craniosacral system.
The choroid plexus has stretch- and compression-sensing receptors within the saggital suture of the cranium. As CSF is added to the craniosacral system and its volume increases, the dural container expands, spreading the bones of the head. The parietal bones then move apart and spread the saggital suture. When this happens, the whole neuromechanism signals the choroid plexus to stop or greatly reduce the production of CSF. As the fluid drains from the system, the dura and cranium shrink and the parietals come together, compressing the saggital suture. The pressure-sensing nerve endings connected to the choroid plexus then send a signal to resume CSF production and the cycle repeats.
Normally, the system seems to operate on a cycle of about six seconds; CSF is produced for about three seconds and then production ceases for about three seconds. This creates the rhythmical rise and fall of fluid pressure within the system.
From the lateral ventricles, CSF enters the third ventricle via the foramina of Monro, then the fourth ventricle via the cerebral aqueduct. The CSF then enters the subarachnoid space and the central canal of the spinal cord via the foramina of Luschka and of Magendie, where it joins the CSF that is already bathing the brain and spinal cord, and all neural tissue enclosed by the dura mater. The fluid then circulates down and around the spinal cord and up and around the brain.
Cerebrospinal fluid passes out of the semi-closed hydraulic system via folds - called arachnoid granulation bodies or arachnoid villae - of the arachnoid layer of the cranial meninges that project through the inner layer of dura mater into the venous sinuses of the brain.3 CSF is reabsorbed into the venous blood through these arachnoid villae, which are primarily in the saggital venous sinous.
Although the rate of reabsorption is fairly constant, it seems to be regulated (think of a car idling) by a cluster of arachnoid granulation bodies found at the anterior end of the straight sinus. From its position at the "crossroads" of the intracranial membranes, this cluster can become aware of any tension within the membrane system and may regulate the outflow of CSF accordingly.
To summarize in a different way, the craniosacral system is like a leaking toilet with the tank cracked into pieces and lined with a giant exam glove (which is the dural membrane). The float-switch in the toilet tank is the saggital suture, which causes an inflow whenever enough water/CSF leaks away down the drain (sinuses).
Generating Whole-Body Effects
The craniosacral system is intimately related to the nervous, musculoskeletal, vascular, lymphatic, endocrine and respiratory systems. Just as abnormalities in the structure or function of any of these systems can influence the craniosacral system, abnormalities in or injuries to the structure or function of the craniosacral system can have profound and deleterious effects on the development or function of the nervous system, especially the brain.4
There are also ways in which the craniosacral system directly influences important, ongoing physiological processes. For instance, the continuing rhythmical movement of the system may serve to "milk" the pituitary gland and affect the neuroendocrine system. The rhythmic motion may also be an important stimulus for the development of the brain. Similarly, the motion around the skull sutures may pump the newly formed red blood cells out of the flat bones of the skull and into the general circulation.5
Of course, any abnormality of the craniosacral system could impact the body or any of its parts through the central nervous system. Any deficiency in circulation of CSF could affect brain and nerve functioning. Any restriction of nerves passing out of the craniosacral system due to restrictions in the cranial sutures or membranes may affect their end organs. Thanks to the Pressurestat Model, we can see why.
Click here for previous articles by John Upledger, DO, OMM.
John Rollinson practices full-time in Northampton, Mass., and at several school clinics in the area. You can contact him at www.rosetrust.org.
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