The Bad and Good News About Orthotics

January 18, 2011 8:33 am 6 comments

Do orthotics work? That's the question explored in this less than definitive piece by Gina Kolata of the New York Times. The first answer, from professors of biomechanics at two different universities, is "If they do work, we don't don't know how they work." The second, and perhaps more meaningful answer, is "The vast majority of patients are happier having them than not." Kolata consults Dr. Benno Nigg, a professor of biomechanics and co-director of the Human Performance Lab at the University of Calgary in Alberta, who says orthotics have little effect on kinematics — the actual movement of the skeleton, but they can have large effects on muscles and joints, often making muscles work as much as 50 percent harder for the same movement and increasing stress on joints by a similar amount. As for “corrective” orthotics, he says, they do not correct so much as lead to a reduction in muscle strength. Nigg, who dismisses most studies of the benefits of orthodics as lacking scientific rigor, did his own study of 240 soldiiers, half of whom wore orthoditcs. What did he find? Those who used orthodics had half as many injuries, but there was no obvious relation between the insert a soldier chose and his biomechanics without it. Yes. It's confusing.

Read more from Gina Kolata.

 

6 Comments

  • They worked for plantar faciitis, when I had that. Yay!

  • Lisa Lanham-Friesner

    Perhaps, you should talk to a physician, like a podiatrist, who specializes in biomechanics, to get a better understanding of how the foot functions and why orthotics work for most people. If the appropropiate research is done and the appropriate professionals interviewed, it’s doubtful that there would be any confusion. The truth is that that orthotics help the midtarsal and subtalar joints function more optimally, thus reducing stress (thus injury) to the joints in the foot, ankle, knee, hip and back. Orthotics decrease jamming forces and can provide shock absorption. Any podiatrist will educate you so that you may gain a better understanding. Happy are those who wear custom orthotics:)

  • But Ms Lisa, the article quotes professors of biomechanics, and quotes studies evaluating the effects of wearing orthotics in an evidence based apporoach, whereas podiatrists have a vested interest in the financial aspects of prescribing orthotics and are therefore not unbiased.

  • Doc Gary and Lisa-
    While the article quotes professors, it is essentially inconclusive. It does however highlight that knowledge of exactly how orthotics function is unclear. There is certainly disagreement amongst practitioners on appropriate prescription. That said, there is benefit from orthotics, many times dramatic, for those with plantar fasciitis.
    My personal belief is that as humans, we are designed to be on our bare feet, walking significant distances daily. This is simply not practical in our modern society. As a result, we wear shoes, and have de-conditioned foot and leg muscles. People with flexible, loose ligament structure seem to suffer the most, incurring a pronated foot attitude, bunion deformity, hammer toes. As a Physical Therapist, who fits orthotics, I find that orthotics with arch support help significantly. Could strengthening the feet and ankles help? Yes, but probably not enough, after over-stretching and deformity have occurred.
    (BTW, I have no $ incentive, our clinic only charges the lab fee, no markup.)

  • Rest is the best treatment. For most competitive athletes, this is the one word they don’t want to hear. However, a sports therapist should be able to help in designing a cross-training program that will maintain cardiovascular/muscular strength and endurance while resting a specific injury. A good program of this type will incorporate strength, anaerobic and aerobic training, using equipment and exercise protocols that protect the injured area by avoiding weight-bearing exercise for a brief healing period. In some cases, rest is required to enable the damaged tissue to repair itself optimally with minimal scarring. Sometimes you simply cannot train or play through the pain without consequences that far outweigh the benefits of continued training or competition. The athlete, coach and sports therapist should work as a team to decide the best way forward.

  • The interesting thing, as I’ve increasingly moved away from “bracing” orthotics, is there seems as many bad orthotics out there as good ones. Too often better, long term alternatives are not considered for the patient. I see heaps of “overserviced and undertreated” problems, and many whose foot type does not need an orthotic, ditto for symptoms. As footwear is often part of the problem, not to mention overstriding, simple devices to restore proprioceptive function can produce immediate and lasting benefits, improving posture, gait and pain levels Without adding to the problem as braces can do, long term. Hence, the de-volution back to barefoot function, minimalist shoes etc.Believe me, Nike didn’t get it wrong this time!So how come my Podiatry colleagues are so slow on the uptake? I have to “de-orthoticise” feet all the time to restore posture and gait parameters AND patients love the alternatives!

Leave a Reply


Recent Posts

  • Eating Well Pain Chronic Fatigue: It’s In Your Gut

    Chronic Fatigue: It’s In Your Gut

    After years of doubt about whether the condition known as chronic fatigue syndrome is really a syndrome, researchers have identified biological markers of the disease in gut bacteria and inflammatory microbial agents in the blood of chronic fatigue sufferers. A Cornell University news release reports that researchers at the school correctly diagnosed chronic fatigue syndrome in 83 percent of patients through stool samples and blood work. When researchers sequenced regions of microbial DNA from the stool samples they found that […]

    Read more →
  • Attitude Pain Stressed? Make Some Art

    Stressed? Make Some Art

    Feeling stressed? Paint a picture, even a bad picture. Researchers at Drexel University are convinced that making art, pretty much any art, reduces the stress hormones in our bodies. Most of the time.  A Drexel news release reports that the researchers studied 39 adults, ranging from 18 to 59 years old, who participated in 45 minutes of art-making. Cortisol levels were taken before and after the art-making period. The participants, half of whom had no real experience making art, were given markers […]

    Read more →
  • Attitude Pain How You Argue And What It Means For Your Health

    How You Argue And What It Means For Your Health

    How you argue says a lot about how your health will fare, according to research recently conducted at UC Berkeley. A Berkeley news release warns that people who rage with frustration during a marital spat are likely to develop high blood pressure, and those who keep a stiff upper lip may experience musculoskeletal ailments such as a bad back or stiff muscles. The study, based on 20 years of research, found that the link between emotions and health outcomes was most […]

    Read more →
  • Pain What Those Crackly Knee Sounds Really Mean

    What Those Crackly Knee Sounds Really Mean

    What do those crackly noises made by your knees really mean? Researchers at Georgia Tech who have devised a way to record the sounds of healthy and unhealthy knees have this answer: it depends. First, they say, all knees make crackly sounds, even if you can’t hear them. Healthy knees produce a consistent pattern of sounds, while damaged knees are more erratic noisemakers. So far, the researchers aren’t diagnosing specific problems with sound, but they can use their tools to […]

    Read more →
  • Pain Uncategorized How To Stay (Relatively) Safe From Ticks

    How To Stay (Relatively) Safe From Ticks

    From Stephen Wikel, professor emeritus of medical sciences at Quinnipiac University’s Frank H. Netter M.D. School of Medicine, comes this advice, via HealthDay, about how to stay safe from ticks: Protect your ankles. Wear long pants tucked into high socks when doing yard work. Wrap duct tape — sticky-side out — around where the pants and socks meet so that crawling ticks get stuck on the tape. Dress properly. Use clothing, tents and other gear treated with repellent, such as permethrin. […]

    Read more →
  • Eating Well Pain Dinner By Candlelight May Keep You Thin

    Dinner By Candlelight May Keep You Thin

    It could be true: researchers at Northwestern University have learned that insulin was unable to quickly bring glucose levels back to a normal level following a meal with bright light exposure in the evening. Yes, that does matter, because the body’s inability to adequately move glucose out of the bloodstream, can, over time, help put the pounds on. A Northwestern new release reports that previous research by Northwestern scientists showed that people who received the majority of their bright light in […]

    Read more →
  • Fitness Pain Exercise May Reduce Risk Of 13 Cancers

    Exercise May Reduce Risk Of 13 Cancers

    And now, thirteen ways of looking at exercise: Researchers at the University of North Carolina’s school of public health are convinced that working out just a couple of times a week can cut the risk of 13 types of cancer, including cancer of the breast, colon, lung, as well as leukemia, myeloma and cancers of the esophagus, liver, kidney, stomach, endometrium, rectum, bladder, and head and neck. Yikes!  Science Daily reports on the research, which looked at 1.4 million people, and […]

    Read more →
  • Fitness Gear Barefoot Running Is Good For Your Brain

    Barefoot Running Is Good For Your Brain

    Barefoot running, all the rage a few years ago, may boost more than cardio fitness. A new study by researchers at the University of North Florida suggests that it can also boost your memory. Men’s Fitness reports on the research, for which 72 participants between 18 and 44 were recruited to run either barefoot or with running shoes at a comfortable,  pace for roughly 16 minutes on a track. In order to simulate the way barefoot runners aim their feet to […]

    Read more →