Fitness

Chiro & Concussions

~ Dr. Robert Speirs DC ~ Leave a comment

head-shot2

​Whiplash Associated Disorders (WAD) is the appropriate terminology to use when addressing the myriad of symptoms that can occur as a result of a motor vehicle collision (MVC). In a recent publication in The Physician and Sports Medicine (Volume 43, Issue 3, 2015; 7/3/15 online:1-11), the article “The role of the cervical spine in post-concussive syndrome” takes a look at the neck when it’s injured in a car accident and how this relates to concussion.

It’s estimated about 3.8 million concussion injuries, also referred to as “mild traumatic brain injury” (mTBI), occur each year in the United States. Ironically, it’s one of the least understood injuries in the sports medicine and neuroscience communities. The GOOD NEWS is that concussion symptoms resolve within 7-10 days in the majority of cases; unfortunately, this isn’t the case with 10-15% of patients. Symptoms can last weeks, months, or even years in this group for which the term “post-concussive syndrome” (PCS) is used (defined as three or more symptoms lasting for four weeks as defined by the ICD-10) or three months following a minor head injury (as defined by the Diagnostic and Statistical Manual of Mental Disorders).

There have been significant advances in understanding what takes place in the acute phase of mTBI, but unfortunately, there is no clear physiological explanation for the chronic phase. Studies show the range of force to the head needed to cause concussion is between 60-160g (“g” = gravity) with 96.1g representing the highest predictive value in a football injury, whereas as little as 4.5g of neck acceleration can cause mild strain injury to the neck. In spite of this difference, the signs and symptoms reported by those injured in low-speed MVCs vs. football collisions are strikingly similar!

Research shows if an individual sustains an injury where the head is accelerated between 60-160g, it is HIGHLY likely that the tissues of the cervical spine (neck) have also reached their injury threshold of 4.5g. In a study that looked at hockey players, those who sustained a concussion also had WAD / neck injuries indicating that these injuries occur concurrently. Injuries to the neck in WAD include the same symptoms that occur in concussion including headache, dizziness/balance loss, nausea, visual and auditory problems, and cognitive dysfunction, just to name a few.

The paper concludes with five cases of PCS that responded well to a combination of active exercise/rehabilitation AND passive manual therapy (cervical spine manipulation). The favourable outcome supports the concept that the neck injury portion of WAD is a very important aspect to consider when treating patients with PCS!

This “link” between neck injury and concussion explains why chiropractic care is essential in the treatment of the concussion patient! This is especially true when the symptoms of concussion persist longer than one month!

We realize you have a choice in whom you consider for your health care provision and we sincerely appreciate your trust in choosing our service for those needs.  If you, a friend, or family member requires care for Whiplash, we would be honoured to render our services.

PFPS Cont. You want details?

~ Dr. Robert Speirs DC ~ Leave a comment

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The muscles of the hip provide not only local stability, but also play an important role in spinal and lower extremity functional alignment. (1-4) While weakness in some hip muscles (hip extensors and knee extensors) is well tolerated, weakness or imbalance in others can have a profound effect on gait and biomechanical function throughout the lower half of the body. (5) Weakness of the hip abductors, particularly those that assist with external rotation, has the most significant impact on hip and lower extremity stability. (5,6)

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The gluteus medius is the principal hip abductor. When the hip is flexed, the muscle also assists the six deep hip external rotators (piriformis, gemelli, obturators, and quadratus femoris). The gluteus medius originates on the ilium just inferior to the iliac crest and inserts on the lateral and superior aspects of the greater trochanter. While the principal declared action of the gluteus medius is hip abduction, clinicians will appreciate its more valuable contribution as a dynamic stabilizer of the hip and pelvis- particularly during single leg stance activities like walking, running, and squatting. The gluteus medius contributes approximately 70% of the abduction force required to maintain pelvic leveling during single leg stance. The remainder comes predominantly from 2 muscles that insert onto the iliotibial band: the tensor fascia lata and upper gluteus maximus.  Hip abductor strength is the single greatest contributor to lower extremity frontal plain alignment during activity. (6)

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Incompetent hip abductors and/or external rotators allows for excessive adduction and internal rotation of the thigh during single leg stance activities. This leads to a cascade of biomechanical problems, including pelvic drop, excessive hip adduction, excessive femoral internal rotation, valgus knee stress, and internal tibial rotation. (1,7-12)

 

References
1. Szu-Ping Lee, Powers C. Description of a Weight-Bearing Method to Assess Hip Abductor and External Rotator Muscle Performance. JOSPT. Volume 43, Issue 6
2. Crossley KM, Zhang WJ, Schache AG, Bryant A, Cowan SM. Performance on the single-leg squat task indicates hip abductor muscle function. Am J Sports Med. 2011;39:866-873.
3. Presswood L, Cronin J, Keogh JWL, Whatman C. Gluteus medius: applied anatomy, dysfunction, assessment, and progressive strengthening. Strength Cond J. 2008;30:41-53.
4. Sled EA, Khoja L, Deluzio KJ, Olney SJ, Culham EG. Effect of a home program of hip abductor ex- ercises on knee joint loading, strength, function, and pain in people with knee osteoarthritis: a clinical trial. Phys Ther. 2010;90:895-904.
5. van der Krogt MM, Delp SL, Schwartz MH How robust is human gait to muscle weakness? Gait Posture. 2012 Feb 29.
6. Laurie Stickler, Margaret Finley, Heather Gulgin Relationship between hip and core strength and frontal plane alignment during a single leg squat Physical Therapy in Sport Available online 2 June 2014
7. Ireland ML, Willson JD, Ballantyne BT, Davis
IM. Hip strength in females with and without patellofemoral pain. J Orthop Sports Phys Ther. 2003;33:671-676.
8. Noehren B, Davis I, Hamill J. ASB clinical biome- chanics award winner 2006: prospective study of the biomechanical factors associated with iliotib- ial band syndrome. Clin Biomech (Bristol, Avon). 2007;22:951-956.
9. Powers CM. The influence of abnormal hip me- chanics on knee injury: a biomechanical perspec- tive. J Orthop Sports Phys Ther. 2010;40:42-51.
10. Powers CM. The influence of altered lower- extremity kinematics on patellofemoral joint dysfunction: a theoretical perspective. J Orthop Sports Phys Ther. 2003;33:639-646.
11. Sigward SM, Powers CM. Loading characteristics of females exhibiting excessive valgus moments during cutting. Clin Biomech (Bristol, Avon). 2007;22:827-833
12. Souza RB, Powers CM. Differences in hip kine- matics, muscle strength, and muscle activation between subjects with and without patellofemo- ral pain. J Orthop Sports Phys Ther. 2009;39:12- 19.

Patellofemoral Pain Syndrome

~ Dr. Robert Speirs DC ~ Leave a comment

knock knee

Patellofemoral pain syndrome (PFPS), also called “Runners Knee”, describes the symptom complex of knee discomfort, swelling, or crepitus that results from excessive or imbalanced forces acting on the joint. It is the most common cause of knee pain in the general population, affecting an estimated 25% of adults.

PFPS is most commonly related to lateral tracking of the patella. The patella has a natural tendency to migrate laterally due to the pull of the quadriceps and the slight natural valgus of the lower extremity. A new study in the Journal of Sports Medicine (1) provides additional confirmation that when managing patellofemoral pain syndrome, clinicians must address two critical yet often overlooked issues.

This study concludes that PFPS and dynamic knee valgus do not arise primarily from knee dysfunction, rather from hip abductor/ external rotator weakness and/or foot hyperpronation.

“The most effective intervention programs included exercises targeting the hip external rotator and abductor muscles and knee extensor muscles.” and “PFPS patients with foot abnormalities, such as those with increased rearfoot eversion or pes pronatus, may benefit the most from foot orthotics.”

Since gluteus medius and VMO weakness are key factors in the development of PFPS, strengthening exercises that target those muscles prove most effective. Stabilization exercises may include pillow push (push the back of your knee into a pillow for 5-6 seconds), supine heel slide, terminal knee (short-arc) extension, clam, glut bridge, semi-stiff deadlift, posterior lunge, and monster walk.

Myofascial release and stretching should be directed at hypertonic muscles, including the TFL, gastroc, soleus, hamstring, piriformis, hip rotators, and psoas. Myofascial release or IASTM may be appropriate for tightness in the iliotibial band, vastus lateralis, posterior hip capsule, and lateral knee retinaculum.

Manipulation may be necessary for restrictions in the lumbosacral and lower extremity joints. Hypermobility is common in the ipsilateral SI joint with restrictions present contralaterally. Evidence has shown that patellar tracking braces, i.e. BioSkin® or PatellaPro®, may lead to better outcomes.

Lifestyle modification may be necessary to reduce pain-provoking endeavors, especially running, jumping and other activities that induce a valgus stress. Athletes should avoid allowing their knee to cross in front of their toes while squatting. Arch supports or custom orthotics may be necessary to correct hyperpronation. Runners should avoid cross-over gaits and change shoes every 250 to 500 miles.

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#pain

#kneepain

#chiropractic

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References

1. Petersen W, Rembitzki I, Liebau C. Patellofemoral pain in athletes. Open Access Journal of Sports Medicine. 2017;8:143-15

Why Does My Back Hurt?

~ Dr. Robert Speirs DC ~ Leave a comment
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It’s been said that if you haven’t had back pain, just wait, because (statistically) some day you will! The following list is a list of “causes” that can be easily “fixed” to reduce your risk for a back pain episode.
1. MATTRESS: Which type of mattress is best? The “short answer”: there is no single mattress (style or type) for all people, primarily due to body type, size, gender, and what “feels good.” TRY laying on a variety of mattresses (for several minutes on your back and sides) and check out the difference between coiled, inner springs, foam (of different densities), air, waterbeds, etc. The thickness of a mattress can vary from 7 to 18 inches (~17-45 cm) deep. Avoid mattresses that feel like you’re sleeping in a hammock! A “good” mattress should maintain your natural spinal curves when lying on your sides or back (avoid stomach sleeping in most cases). Try placing a pillow between the knees and “hug” a pillow when side sleeping, as it can act like a “kick stand” and prevent you from rolling onto your stomach. If your budget is tight, you can “cheat” by placing a piece of plywood between the mattress and box spring as a short-term fix.
2. SHOES: Look at the bottom of your favorite pair of shoes and check out the “wear pattern.” If you have worn out soles or heels, you are way overdue for a new pair or a “re-sole” by your local shoe cobbler! If you work on your feet, then it’s even more important for both managing and preventing LBP!
3. DIET: A poor diet leads to obesity, which is a MAJOR cause of LBP. Consider the Paleo or Mediterranean Diet and STAY AWAY from fast food! Identify the two or three “food abuses” you have embraced and eliminate them – things with empty calories like soda, ice cream, chips… you get the picture! Keeping your BMI (Body Mass Index) between 20 and 25 is the goal! Positive “side-effects” include increased longevity, better overall health, and an improved quality of life!
4. EXERCISE: The most effective self-help approach to LBP management is exercise. Studies show those who exercise regularly hurt less, see doctors less, have a higher quality of life, and just feel better! This dovetails with diet in keeping your weight in check as well. Think of hamstring stretches and core strengthening as important LBP managers – USE PROPER TECHNIQUE AND FORM; YOUR DOCTOR OF CHIROPRACTIC CAN GUIDE YOU IN THIS PROCESS!
5. POSTURE: Another important “self-help” trick of the trade is to avoid sitting slumped over with an extreme forward head carriage positions. Remember that every inch your head pokes forwards places an additional ten pounds (~4.5 kg) of load on your upper back muscles to keep your head upright, and sitting slumped increases the load on your entire back!
We have only scratched the surface of some COMMON causes and/or contributors of back pain. Stay tuned next month as we continue this important conversation!
We realize you have a choice in whom you consider for your health care provision and we sincerely appreciate your trust in choosing our service for those needs.  If you, a friend, or family member requires care for back pain, we would be honored to render our services.

Exercise and Low Back Pain

~ Dr. Robert Speirs DC ~ Leave a comment

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Low back pain (LBP) is a very common problem that affects most of us at some point in life and for some, it’s a daily issue. Through education and research, researchers have found low back-specific exercises can not only help get rid of LBP but can also prevent future exacerbations or episodes. Like brushing our teeth, low back exercises are equally important in order to maintain, preserve, and optimize function. But because there are SO MANY exercise options available, it’s hard to know which ones are best, especially for each specific person.
There are different methods for determining the right low back exercises for the patient. One of the most common is to try different exercises to determine individual tolerance, but this is not very specific, as it only determines whether or not the patient is comfortable with an exercise. Another is using physical performance tests (PPTs) that measure the strength and endurance of specific muscle groups, muscle shortness, balance, aerobic capacity, and spinal range of motion.
Physical performance tests are much more specific because they address each patient’s differences. Also, many PPTs include normative data to compare against the patient’s own performance, so repeat use of the abnormal PPTs on a monthly interval can gauge their progress (or the lack thereof), which is motivating to the patient and serves as a great outcome measure!
PPTs are typically done two to four weeks after an initial presentation or at a time when the condition is stable so as not to irritate the condition. Initially, the decision as to which exercise is best is often made by something called “directional preference” or positional bias. This simply means if a patient feels best by bending over, we initially give “flexion-biased” exercises.
Flexion-biased exercises include (partial list): pulling the knees to the chest (single then double), posterior pelvic tilts (flattening the low back into the floor), sitting and/or standing bend overs, hamstring stretches, and more. If a person’s low back feels best bending backwards, their doctor of chiropractic may give extension-biased exercises, which include (partial list): standing back bends, saggy push-ups (prone press-ups), and/or laying on pillows or a gym ball on their back, arching over the ball.
Chiropractors generally add exercises gradually once they’ve determined tolerance and will recheck to make sure the patient is doing them correctly. Studies show that spinal manipulation achieves great short-term results, but when exercise is added to the treatment plan, the patient can achieve a more satisfying long-term result. Unfortunately, other studies have shown that ONLY 4% of patients continue their exercises after pain is satisfactorily managed and they fall back into old habits of not exercising.
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Chronic Neck Pain and Anxiety-Depression.

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Chronic neck pain often results in a psychological impact that can affect daily life. A new study involving 80 patients with chronic neck pain investigated the prevalence of anxiety and depression in patients with neck pain as well as associated risk factors and found that 68.4 % suffered from anxiety and 55.7% patients were depressed. Furthermore, disability and cervicobrachial neuralgia (neck pain radiating into the arm) associated with chronic neck pain predicted which patients had at higher risk of psychological distress.

The Pan-African Medical Journal, May 2016

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Active Seniors Recover More Easily from Injury.

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Seniors who regularly exercise appear less likely to suffer a disability, and if they do, they tend to recover quicker. A study that included 1,600 older adults showed that active seniors were 13% less likely to develop a physical disability, and exercisers were one-third more likely to recover from impairment than those who lived a sedentary lifestyle. The findings suggest that it’s never too late to reap the benefits of exercise.

Annals of Internal Medicine, September 2016

Kids Who Garden Eat Healthier Later in Life.

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Letting kids help in the garden may promote lifelong healthy eating habits. Researchers surveyed over 1,300 college students and found that students who gardened as a child and continue to do so ate 2.9 cups of fruits and vegetables daily—about a half a cup more than their peers who never gardened.

Lead author Dr. Anne Mathews adds, “We found that if your parents gardened but you did not, just watching them did not make a difference in how much fruits and vegetables you eat in college. Hands-on experience seems to matter.” The authors suggest that schools offer gardening lessons to expose young children to the activity, which may encourage students to maintain healthy eating habits later in life.

Journal of the Academy of Nutrition and Dietetics, September 2016