|
UNDERSTANDING HUMAN BIOMECHANICS:
UNDERSTANDING PRONATION:
- Pronation describes the rotation of a body part downward or inward. It is actually a normal motion that occurs when walking; however, if it happens excessively, pronation can cause global postural problems. The major cause of over-pronation is a decrease in the arch height.
POSTURAL EFFECTS of FOOT/ARCH INSTABILITY (remember the song: the foot bones connected to ankle bone, ankle bones connected to the knee bone, knee bones connected to the hip bone, the hip bones connected to the pelvic bone and the pelvic bones connected/ supports the SPINAL BONES)
- BILATERAL / ASSYMETRIC excessive pronation (rolling in of the foot) can cause plantar fascitis, bunions, heel spurs, calluses/corns
- PATELLA APPROXIMATION (knock knees) - stretches ACL, torques the medial meniscus, inhibit quadricep contraction
- TILTING of PELVIS: causes a high hip which can create a functional scoliosis. Pelvic unleveling also places abnormal / assymetric tension on muscles and connective tissues, which can eventually lead to chronic back problems.
- FORWARD SHIFTof PELVIS
- FORWARD HEAD POSTURE - most common postural distortion in population, can lead to headaches, neck/upper back pain, pain and numbness in arms, carpal tunnel syndrome, thoracic outlet syndrome
RED FLAGS (indicators) of EXCESSIVE PRONATION
- FOOT FLAIR (toe out) when standing and walking
- PATELLA APPROXIMATION (knock knees)
- BOWED ACHILLES tendons
- FLATTENED Medial Arches
- UNEVEN (assymetric) Shoe Wear
BENEFITS of CUSTOM SPINAL PELVIC STABILIZERS:
- CONTROL EXCESSIVE PRONATION - creating a balance symmetrical foundation
- ABSORB EXCESSIVE DAMAGING SHOCK FORCEE- reduces repetitive stress on joints and muscles, permitting smoother function and decreasing arthritic symptoms.
- ENHANCE NERVE SYSTEM FUNCTION - enhances sensory motor response and proprioception balance
- Use of Spinal Pelvic Stabilizers represents a long-term, yet cost-effective intervention for many types of functional and structural problems.
How Spinal Pelvic Stabilizers Work:
- Wearing Spinal Pelvic Stabilizers inside your shoes is similar to placing a shim beneath the leg of a wobbly table: it adds support to eliminate unwanted motion in the entire structure.
- The foot is formed of three distinct arches, which create an architectural vault. The result of supporting these three arches is improved stability and postural integrity.
- Flexible Spinal Pelvic Stabilizers encourage optimal muscle and nerve function by guiding the feet through a more normal pattern with each step taken.
About Foot Levelers Spinal Pelvic Stabilizer (SPS) Orthotics:
- Foot Levelers, Inc., a leading supplier for 50 years, creates custom-made, flexible Spinal Pelvic Stabilizers to match each patients unique needs.
- Using weightbearing impression images of the feet in the position of function (either from a foam casting kit or a digital scanning system), along with instructions from the healthcare professional,
- Unlike other stabilizing technologies, which use rigid materials to force the feet into a theoretical ideal position and may result in muscle atrophy and abnormal nerve proprioception, Foot Levelers allow controlled, supported movement for the dynamic human body.
WHAT's THE DIFFERENCE?
Off The Shelf Arch Supports/Inserts
No one else's feet are exactly like yours. Store bought orthotics are not custom made, do NOT take into account your specific postural needs, and do NOT support all three arches of your foot.
Medical Orthotic Casting
-
Orthopedic device for foot problems only
-
Done with the patient in the sitting or lying (non-weight-bearing) position called Roots Subtalar Neutral which has shown to be unreliable and unreproducable. The "neutral" or "corrected" subtalar position is ill -defined and not physiologically reproducible. Elvuru RA, Rothstein JM, Lamb RL. Goniometric reliability in a aclinical setting, Subtalar and ankle joint measurements. Phys. Ther 1988; 68(5): 672-677
Baxter DE et al. The ideal running orthosis: a philosophy of design. Biomechanics 1996; 3(3): 42
Chiropractic Weightbearing Impressions or Electronic Scan
- Patient standing up (weight bearing) because pathologies in structure and function are most apparent when the body is in a position of function. Likewise, fallen arches or dropped metatarsals would not be evident if the foot were cast in a non-weight-bearing position. Weightbearing methods have shown to be the most reliable, accurate, and effective process for providing patients with optimal fit and support. Wu KK, Foot Orthoses: Principles and Clinical Application. Baltimore: Williams & Wilkins, 1990
Greenwalt, MH. Spinal Pelvic Stabilization (4th Ed.) Roanoke, VA: Foot Levelers Inc. 1990:35
"Standing foot posture at rest, not Root's subtalar neutral, best represents the actual position of the rearfoot during the gait cycle. Pierrynowski MR, Smith SB. Rear foot inversion/eversion during gait relative to the subtalar neutral position. Foot Ankle Int. 1996; 17(7):406-412
Support foot >> block excessive pronation >> stabilize kinetic chain >> stabilize pelvis/spine >> improve proprioceptive neurologic input
What specific conditions may be helped? Below is a list of some of the conditions that orthotics can help: Achilles Tendonitis, Corns, Metatarsalgia, Sesamoiditis, Ankle Sprains, Flat Feet, Neuroma, Tendonitis, Arch Pain, Heel Pain, Pronation, Top of the foot pain, Bunions, Knee Pain, Shin Pain, Toe Pain.
Imbalance in your feet can alter the bony structure of your feet and lower legs, foot orthotics may eliminate posture problems and foot and leg pain.
Do I need a physician's prescription to get custom orthotics? No. Chiropractors are primary health care professionals therefore you do not need a physician's referral. Custom orthotics are orthotics that are especially molded to your feet unlike "one size fits all - off the shelf" orthotics.
QUICK HOME TEST
Step 1. Stand barefoot - in shorts or underwear - in front of a full-length mirror, so that you can see from your knees down to your feet. Stand in a relaxed, normal position, facing the mirror. Close your eyes. March in place about 10 steps to position your feet naturally.
- Do either or both feet flare outward?
Yes No
- Do either or both feet point inward?
Yes No
- Are either or both kneecaps off center?
Yes No
Step 2. Stand sideways (first left, then right):
- Do either or both feet appear flat, with no arch support?
Yes No
- Do either or both feet appear extra high in the arch area?
Yes No
 |
 |
Pronation Flat Arch Concave Achilles Heels |
Supination High Arches Convex Achilles Heels |
If you answered yes to any of the above, your feet are probably pronated or supinated and are not providing proper support for your body.
Call COTTINGHAM CHIROPRACTIC at 480-940-4880
for an Evaluation and Rx today!
|