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The Tao of Gender
If you think gender is as simple as having a new client check off the "male" or "female" box on your intake form, we hope this article will expand your understanding and thus the reach of your health care.
The Heart Protector
On the physical level, the Pericardium is a double-layered sac of fibrous tissue that envelops the Heart. The space between the layers is filled with serous fluid that protects the Heart from external shock or trauma and lubricates to allow for normal Heart movement.
Jingei Diagnosis: An Effective and Powerful Diagnostic
I graduated from the Kotatama Institute under the direction of Drs. Masahilo and Katsuharu Nakazono in 1984. As a student, I was exposed to the practice of most of the various theories and modalites of Oriental Medicine.
Essential Orthopedic Testing: Tests That Involve Standing on One Leg
Since these tests have a common mechanism of performance (standing on one leg), there are differential diagnostic concerns during testing. The tests cannot be completely isolated from each other for performance.
The Case for Immunization
As long as I have been a chiropractor, I have seen many in this profession oppose vaccinations. Indeed, it has often been taken as a "given" that to be a principled chiropractor requires a curmudgeon's willingness to hold aloft that banner of opposition.
Commingling Money: 12 Questions for the ACA About the CHAMP / NCLAF Merger
The American Chiropractic Association recently announced it was merging the National Chiropractic Legal Action Fund and the Chiropractic Health Advocacy and Mobilization Project into a single entity that will support both legal and legislative actions.
The Wonders of Light Therapy: An Interview with Wes Burwell
I first met Wes Burwell in 2011 when he was teaching a class on light. Since then, every time I hear him speak, his understanding of the benefits, function and capacity of light has evolved.
A Commonly Missed Spinal Fixation: The Upper Lumbar Spine (Part 2)
As mentioned in part 1, using a flexion-distraction table is a great way to unlock this particular fixation. You have found the stuck segment. You have determined whether it is unilateral, midline or bilateral.
Simple Ways To Find True Happiness
Patients in our clinics are always seeking happiness. As their health advocate, we need to ensure we inform them that in order to find happiness, they have to make sure to identify what makes them happy in the first place.
Healing With TCM at San Quentin State Prison
For the prisoners at San Quentin State Prison, life-sentences are the reality of every day life. It is not often that prisoners get the opportunity to use alternative medicine to deal with common ailments they encounter behind bars such as, depression, anxiety and pain.
To The Finish Line With the Help of TCM
When acupuncturist Eddy De Smedt pursued a career in Traditional Chinese Medicine, he knew he wanted to make a difference.
Managing Today's Fertility Patient
I recently received an email from one of my fertility patients: "Got my lab results back. FSH is 11, AMH is 0.7. My doctor said these numbers aren't good. I guess I'm infertile. Just as a thought. Just set up an appointment to speak with an adoption agency."
CMT & Stroke Risk: Myth vs. Fact
By now, most of you have probably heard that the American Heart Association recently published a statement regarding the association between cervical dissection (CD) and cervical manipulative therapy (CMT).
Sports Science: What's in That Drink?
Athletes frequently ask me what the best liquid is to drink during exercise – water or a sports drink? Water provides the necessary hydration, but unfortunately, it lacks the key nutrients to aid in performance and recovery.
Chiropractic Research in Review
Predicting Pain With Disability in Office Workers; Traction Approaches for Discogenic Cervical Radiculopathy; Intra-Articular Gas Bubbles Following Manipulation; Nonresponsive Chronic Ankle Sprains: Think Tendon Rupture.
Dr. George Goodman and His Legacy to Logan University
Those who knew him called him a revered leader, a visionary and one of chiropractic's biggest advocates. George A. Goodman, DC, Logan University's sixth and longest-serving president, passed away on Sept. 9. He was 70 years old.
Correcting Pelvic Rotation Around the Long Axis: Adjustment Protocol
The pelvis can be considered a ring that can misalign on the sacrum rotating around the long axis. The following is a description of an adjustment that helps to correct sacroiliac rotation around the long axis.
Pulse Diagnosis: What We Know
I am still finding pearls of wisdom from the books and papers that I inherited from my pulse diagnosis mentor Jim Ramholz.
Lime Jello on Morphine
Taste is in the eyes... actually the mouth... of the beholder. My food preferences have changed, lightening from the food of my youth. My parents loved heavy eastern European cuisine and I loved it as a child. Now I enjoy leaner, healthier whole foods.
AOMA Strengthens Leadership Team
AOMA Graduate School of Integrative Medicine, a leading college of acupuncture & herbal medicine, announced the appointment of Donna LaPoint Hurta, MBA as the new VP of Finance & Operations this Fall.
Communication 101: Please Explain Yourself!
Twice this past week, I overheard conversations about chiropractic. As you can imagine, it is a topic my ears naturally pick up. In both cases, a patient was talking to a friend about their experience with a chiropractor.
Uncle Sam Needs You (Part 2)
Where chiropractic care has been used in the military health services, it has been deemed very successful.
June, 2013, Vol. 13, Issue 06
Muscles as Team Players
By Erik Dalton, PhD
Synergistic dominance occurs as "helper" muscles are recruited to take over function when a "prime mover" muscle fails, much like when a football coach calls in the substitute players when a key player is injured.These synergistic stabilizing muscles are designed to help, but not be primary contributors, to a particular movement. Synergistic may be defined as "acting together to enhance the effect of another force." Therefore, if muscles perform the same task at a particular joint, they are termed synergistic.
Altered reciprocal inhibition occurs when a muscle is activated (the agonist), when it should not be. Excessive stress on the agonist decreases the signal strength to the opposing muscle (the antagonist). In altered reciprocal inhibition, the agonist muscle is being activated even though it is not actively contracting. Altered reciprocal inhibition is often the culprit causing synergistic dominance. For example, in forward-head postures, the client's suboccipitals are often maintained in a hypercontracted state as they battle gravity to keep the eyes level with the horizon. As the head cocks back and moves forward on the neck, the antagonist longus capitis muscles - which bind the anterior surface of the upper cervical vertebrae to the occipital base, become overstretched and weak (Figure 1).
Sensing the longus capitis muscles can no longer carry out their duty as primary head-on-neck flexors, the brain calls on the powerful sternocleidomastoids (SCMs) as pinch-hitters. The SCMs are reliable neck flexors when allowed to fire in proper order. However, they serve as poor subs for longus capitis due to their insertion at the mastoid process. When reciprocally weakened from suboccipital hypertonicity, longus capitis muscles give way to the powerful SCMs causing them to fire first in an effort to hold the head upright on the neck. But, instead of holding the head upright, the SCMs "extend" the head on the neck, causing a forward head posture. Neural and vascular structures embedded under the posterior O-A joint aren't happy with this excessive compression.
When the neck's normal firing-order sequence is disrupted, synergistic muscles begin pulling the head in different directions, sending torsional and compressive forces through the facet joints and intervertebral discs. This often results in chronic degenerative conditions such osteoarthritis (spurring), degenerative disc disease and ligamentous laxity. The client may come in complaining of migraines, radicular pain in the arms or thorax, or even an unsightly dowager's hump (Figure 2).
At some point, the brain may get "fed-up" with the flood of noxious mechanoreceptor and possibly chemoreceptor input, and decide to lock the area down with protective spasm. Of course, this may further alter the firing order pattern causing a pain-spasm-pain cycle that's often hard to break. The client's gait may reveal certain body parts that appear frozen in time, as chronically embedded compensations have caused the brain to sacrifice complexity of movement for stability. Fortunately, simple tests help determine if synergistic dominance exists at a particular joint.
Forward bending of the head and neck with the client in a supine position should initiate the following firing-order sequence: longus capitis, longus colli, SCMs and anterior scalenes. The deepest intrinsic muscles must fire first starting with longus capitis (flexing the head on the neck) followed closely by longus colli, which initiates the beginning of neck flexion. Anterior scalenes and SCMs can then join forces to produce smooth head-and-neck flexion.
The most commonly seen substitution pattern (SCMs, anterior scalenes, longus colli and longus capitis) causes the chin to reach toward the ceiling rather than tucking into the chest during the first two inches of flexion efforts (Figure 3).
The neck flexion test alerts the therapist as to which musculofascial tissues need lengthening and which must be strengthened. By performing the head-raise test before and after each neck session, aberrant substitution patterns can be easily identified and corrected. Tension-length imbalances are usually easy to fix once proper assessment is made. The technique demonstrated in Figure 4 is one of my favorites for treating adhesions and contractures in the SCM muscles and accompanying fascia. Please visit http://youtu.be/UmS2pPZIFnw as I perform the neck flexion test and SCM release.
Click here for more information about Erik Dalton, PhD.
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