spine

October 16 is World Spine Day, which makes this the perfect time to share with you a fascinating piece of recent research about the human spine. 

In April I was contacted by Scott Williams PhD, Associate Professor at the Center for the Study of Human Origins, Department of Anthropology, New York University. He and his team of anthropologists had recently published a scientific paper— which concluded that understanding the spines of Neanderthals, a human ancestor, may explain the back pain experienced by humans today.

Who were the Neanderthals?

The Neanderthals populated Europe and Asia between about 400,00 and 40,000 years ago. Neanderthals became extinct, but are considered one of our most recent evolutionary ancestors. Research shows there is DNA evidence that they interbred with early human populations¹. 

The Neanderthals were adept hunters who controlled fire and made shelters, clothing, and artifacts. Wikimedia

The Neanderthal skeleton was shorter, and its bones heftier and more robust than those of modern humans. Rather than being a hunched “caveman,” recent research suggests their posture may have been entirely upright. Wikimedia

Comparing Neanderthal and modern spines

Examination of the bones of Neanderthal lumbar spines has indicated that they curved less in the lumbar area than modern human spines studied in the U.S. and Europe. Because a significant degree of lumbar curve has commonly been associated with the ability of bipedal humanity to stand upright, Neanderthals have long been assumed to have had an intrinsically different posture from modern humans. 

However, Professor Williams was able to come to a different conclusion because, like the Gokhale Method®, he realized that “modern” human posture itself has been subject to change in just the past few hundred years. 

Williams and his colleagues compared preindustrial to postindustrial spines of male and female modern humans from around the world against samples of Neanderthal spines. His samples included more than 300 spines—that’s more than 1,600 vertebrae.

Williams acknowledges that because lower back curvature is made up of soft tissues (i.e., intervertebral discs), not just bones, their spine shape cannot be known with certainty. “The bones are often all that is preserved in fossils, so it’s all we have to work with,” he adds. Nonetheless, the distinctions in spine formation that Williams and his team found strongly suggest different degrees of curvature.

What Williams’ research found about modern human spine shape

Williams’ research indicates that there has not been just a one-time dominant spine shape in modern humans, but that spine shape changed over the period of the industrial revolution. Overall, Williams found that spines in postindustrial people showed more lumbar wedging (which produces curvature) than did those in pre-industrial people. 

This illustration detail from Professor Williams’ paper shows increasing, unchanged, and diminishing angles of wedging towards the back of lumbar vertebrae (B). Academic.oup.com

Williams observes:

Past research has shown that higher rates of low back pain are associated with urban areas and especially in ‘enclosed workshop’ settings where employees maintain tedious and painful work postures, such as constantly sitting on stools in a forward leaning position. . . A pre-industrial vs. post-industrial lifestyle is the important factor.

Research fits with the Gokhale Method

In his paper Williams cited my book, 8 Steps to a Pain-Free Back, as it details how posture and spine shape have changed progressively since the industrial revolution. It explains that industrialization led to the break in transmission of traditional ways of living and working. For example, people have always sat to do tasks—but it’s how they sat that changed and caused problems. 

Human beings have always sat to do tasks, from nursing infants to decorating artifacts. The important thing is to sit well. Winslow Homer, Mending the Nets, 1882 (detail). nga.gov

Industrialization also resulted in new but mistaken paradigms of “natural” spine shape in furniture design, fashion, and even medicine. My book advocates for the J-shaped, pre-industrial spine rather than the  postindustrial, S-shaped spine, which causes lumbar compression, wear and tear, and pain. You can read more about spine shape here.

The Gokhale Method advocacy for the J-shape is based on observing that it remains intact in our children, largely in our track and field athletes, and consistently in adults living in non-industrialized regions or in traditional societies. And these people report significantly less back pain than the 80% of American adults who suffer incapacity with back pain at some point in their lives. 

s

This illustration from 8 Steps to a Pain-Free Back shows the more recent S-shape spine (left) that would likely create “wedging” in the intervertebral discs and bones subject to extra curvature, and the earlier J-shape spine that does not have this compression (right) .

Conclusions about the Neanderthal spine and understanding modern back pain

Williams’ research concludes that the Neanderthals’ spines were significantly different from those of postindustrial people but not from pre-industrial people. By examining only the spines from modern people who lived in the industrialized world, past researchers have mistakenly assumed that the distinctions between Neanderthal and modern spine shape were due to evolutionary development rather than social and cultural changes. Williams says:

Diminished physical activity levels, bad posture, and the use of furniture, among other changes in lifestyle that accompanied industrialization, resulted, over time, in inadequate soft tissue structures to support lumbar lordosis during development. To compensate, our lower-back bones have taken on more wedging than our pre-industrial and Neanderthal predecessors, potentially contributing to the frequency of lower back pain we find in post-industrial societies. 

This illustration shows how angles of vertebral wedging contribute to spinal curvature. 

The idea that the lumbar spine of our Neanderthal ancestors was relatively straight is not so shocking to those of us who already recognize that it makes sense for bipedal spinal health. And the wedging of the postindustrial vertebral bones is a fascinating discovery, which shows the degree of adaptation possible within the human body, although it is clearly not preventing back pain! 

The evolution of humankind has been associated with changing posture in many versions of this cartoon. Pinterest

This fascinating research suggests an ancient and more natural way to be which, while preserved in some parts of the world, we’ve largely lost in our culture. But it can be and is being relearned. If you would like guidance on any aspect of your posture and spine shape, consider scheduling an Initial Consultation, online or in person, with a Gokhale Method teacher.

If you would like to find out more about how the Gokhale Method can help support you, sign up to join one of our upcoming FREE Online Workshops…

Reference:
¹ Scott A. Williams et al., “Inferring Lumbar Lordosis in Neandertals and Other Hominins.” PNAS Nexus 1, no. 1 (March 2022): pgab005, https://doi.org/10.1093/pnasnexus/pgab005.’

Flexibility in the body is generally regarded as a plus, and most people want more of it. Flexibility is seen to enable a wide range of motion, avoid muscle pulls, and spare wear and tear in overly tight joints. But like most things in life, you can have too much of a good thing. In this blog post we are going to look at why excessive mobility has a downside and how healthy posture can mitigate that.

An exceptional range of motion makes for a very “bendy” looking body. Enter the age-old art of the contortionist, a mainstay of acrobatic troupes, circuses, and fairs, which for centuries have enthralled and appalled audiences in equal measure. 

“The most Extraordinary Posture Master.” Wikimedia
Engraving of Joseph Clark of Pall Mall, London, England, by Thornton, c. 1690

What is hypermobility?

An unusual degree of flexibility is still sometimes referred to as being “double-jointed,” but this is poetic license and inaccurate—hypermobility is a better term. Hypermobility is usually due to laxity in the ligaments that holds one bone to another, forming the joint. Hypermobility enables more rotational movement in ball and socket joints such as the hip, more “bend” at hinge joints like the knee and elbow, and also larger angles of bend between the vertebrae of the spine. Hypermobility can be genetic, acquired by persistent over-stretching, or a combination of both. 

The Beighton score, along with other criteria, is used to assess hypermobility. It gives 1 point for each elbow and knee that hyperextends by 10 degrees or more (4 points), 1 for each little finger that bends back by 90 degrees (2 points), 1 for each thumb which can be touched to the forearm (2 points), and 1 for touching the floor with the palms. Wikimedia

Hypermobility can do damage

Unfortunately, there is a high incidence of injury associated with over-stretching ligaments, which lack abundant blood supply to repair themselves and the elasticity to return to their baseline length. Most professional dancers, gymnasts, or acrobats are trained from an early age to further enhance their natural flexibility with stretching regimens. But this can be taken too far. 

Israeli rhythmic gymnasts at the 2012 London Olympics. Note the hyperextension of the center gymnast’s standing leg,
 which bows backward. Wikimedia

A memorable example of taking flexibility and stretching to the point of damage was the career of gymnastics champion Olga Korbut. Having won gold at the 1972 Olympics she toured West Germany. In her autobiography she wrote, “During that tour of Germany, the lumbago in my back began to hurt more and more. The Novocaine injections took away the pain for a while, but I needed time to rest and heal. By the end of the tour, I walked as though I had a stake in my spine.” 

Olga Korbut demonstrating her prowess on the beam. Her upper lumbar spine is being pushed into significant curves. Alchetron

Protecting the spine

It is common to find vertebrae that have become hypermobile where the adjacent section of spine has become stiff and lacks movement. This can be a particular issue in movements such as a golf swing, where it is important that the rotation be distributed appropriately through the whole body rather than achieved by an extreme twist between a few vertebrae.

Tiger Woods follows through with rotation throughout his body, not just twisting at the waist. Flickr

Hypermobility in the spine can result in damage to all its structures. The vertebrae may lay down problematic extra bone in an effort to protect the area. The discs are also at risk of wear and tear and herniation, and the nerves risk compression. Muscles may become hypertonic (held tight) or spasm in an effort to stabilize the area and protect the delicate structures of the spine.

If you do have a genetic disposition to hypermobility, then it’s important to have adequate strength in the muscles surrounding the affected joints to maintain good alignment. Equally important knowledge of healthy posture will ensure you know how to find and keep ideal alignment. 

Protecting elbows and knees 

If you have hypermobile elbows and are on all fours, don’t “park” into those joints. You want to retain a little “give” at the elbow creases. This works the muscles around the elbow joints, affording them protection and encouraging the hands to also be responsive rather than compressing the wrist joints as they take all the weight. 

Avoid locking out your elbows, which pushes into the joints and further distends their ligaments. In the example above, the hands are inactive and all the weight is pressed into the wrist joints. Freepik

Similarly, if you have hypermobile knees, you don’t want your knees to go past straight to bow backward when standing. If this is a habit for you, join me on the 1-2-3 Move program on Monday, September 6 and I will show you a couple of dance techniques to displace this habit. You can also join Eric for Gokhale Fitness on Tuesday, September 7 when he will share an exercise approach to maintaining healthy knee joints.

If you would like to join either or both of these classes but have not yet subscribed to the 1-2-3 program, sign up now for your 7-day Gokhale Exercise Free Trial.

1-2-3 Move happens daily with Esther or guest teachers at 9:45 a.m. (Pacific Time)
Gokhale Fitness with Eric runs Mondays, Wednesdays, Fridays from 7–7:25 a.m.
(Pacific Time), and Tuesdays, Thursdays, Saturdays from 3–3:25 p.m. (Pacific Time)
Gokhale Moving Meditation with Roberta is Mondays at 2 p.m. and with Kathleen is Wednesdays at 12 p.m. (Pacific Time)

Flexibility in your body is a wonderful thing. It looks good, and feels good, but requires some wisdom in its usage. The Gokhale Method® approach to movement and exercise is always holistic, supports good posture habits, and develops the necessary strength to protect the joints from injury. 

If you would like an expert one-on-one assessment of your posture and flexibility you can arrange an Online Initial Consultation or take an in-person Initial Consultation if you have a Gokhale Method Teacher near you.

Most of us spend a good deal of time in our cars, commuting, chauffeuring kids around, doing errands, or if we’re lucky, heading out to an adventure spot. Much of this time is spent being physically uncomfortable, especially if the car was manufactured in the last decade. There seems to be a downward spiral of poor posture and design that reflects poor posture - which in turn worsens posture. How can we break this cycle?

The industry standard for human form reflects the average in society: shoulders forward, S-shaped spine, and forward head. Car seats are designed to fit these features.

A checklist for healthy posture when driving includes:

1. Shoulders:  back and down
2. Neck: elongated and stacked over the spine
3. Bottom: well back in the seat
4. Spine: elongated and well-stacked

Modern car seats often make these simple posture practices challenging or impossible. The good news is that it’s relatively easy to fix almost any kind of carseat to make it conducive to good posture. 

1. Shoulder positioning. You may find that the “bolsters” in your carseat get in the way of placing your shoulders back.
   

   The bolsters add considerable horizontal curve to this seat upright, and prevent the arms and shoulders from resting back beside the torso.

   
   The origin of bolsters lies in the racing car industry - bolsters keep racing car drivers in their seats as they whizz around corners at high speeds. For those of us not compelled to turn corners at 100 mph, the bolsters are an annoyance that make it impossible to set the shoulders in a comfortable and healthy place. Solution: Build up the backrest area between the bolsters, so your torso is no longer sunk between the bolsters with your shoulders forced forward. Depending on how much your car’s bolsters protrude, a towel folded over a couple of times may suffice, or you may need a much thicker support. When I travel, I use rental cars. With each rental car, my first action is to profile it: will a single Stretchsit cushion suffice or will it need additional thickness? Technique: After adding some thickness to the mid-portion of the chair upright, move one shoulder at a time a little forward, a little up, and then significantly back and down. Once you have your shoulders back in place, you may discover you need to move your seat closer to the steering wheel to comfortably hold the steering wheel. Be sure to keep a safe distance from the airbag. 
    
2. Neck support. Have you noticed that many car headrests push your head forward uncomfortably? The degree seems to get worse with the years. Headrests now have a new official name, which is “head restraint.” They are shaped to stick far enough out that the head is resting against the headrest and would not have any space in which to whip backward in the event of a collision. 
   
   
   The head restraint, as headrests are now named, reflect, and perpetuate, forward head posture.
   
   The standard that determines the extent to which the head restraint juts forward is the Crash Test Dummy. The Crash Test Dummy was modeled on a person with typical Forward Head Posture, and therein lies the rub.
   
   
   
   The Crash Test Dummy has forward head posture
   
   When I taught a workshop to the designers at Johnson Controls in Ann Arbor, they pointed to my Stretchsit cushion and remarked “the reason your products are popular is that we’re legally obliged to design seats the way we do.” It is sad when designers become constrained by deterioration in people's posture. 
   
   
   Forward head posture is now so common it negatively influences car headrest design.
   
   Solution: Very similar to the solution for bolsters, but the extent of how much you build up the central portion of the backrest now depends on how much the head restraint juts forward. DO NOT turn the headrest around 180 degrees or remove it or sit forward in your seat - in case of an accident, this would put you at risk of severe damage from whiplash. Technique: Determine the best posture you are able to assume in your neck. Now pad the central portion of the backrest so that the headrest works to rest your head against. Elongate your neck in any of the five ways described in 8 Steps to a Pain-Free Back, and “hook” the back of your head against the headrest so your neck is getting a gentle stretch. 
    
3. Setting the bottom back in the seat. This is not a problem in most cars. Some notable exceptions are: 

• very old cars whose seats have worn down so your bottom sinks into a “cave.” 
  
  
  Some carseats wear out in ways that create a "cave" for your bottom to sink into. 
  
  Solution: build up the cave to horizontal or near horizontal. Do not build it up to be a wedge - wedges are helpful for stacksitting, but not for stretchsitting, and in a car you want to stretchsit, not stacksit.  
   
• Bucket seats: Ouch. Solution: It’s very difficult to fix these. I recommend starting from scratch - go to Relax the Back, buy a seat to place in your bucket seat, and modify as needed.
  
  
  Bucket seats are very difficult to modify so they support healthy posture
   

4. Spine support. Does your car seat have lumbar support? This is based on conventional wisdom about an S-shaped spine being normal and healthy.
   
   
   An unhealthy amount of built-in lumbar support in a carseat.
   
   My experience is that it causes extra curvature in the spine, tight back muscles, degenerated discs, and arthritic changes in the vertebrae. Solution: What you really need is a thoracic support that you can stretch your back against. Technique: Use a Stretchsit cushion (if you have a fabric seat, a folded towel can also provide the grip you need) suspended behind your mid-back. Follow the instructions in 8 Steps to a Pain-Free Back to stretchsit and put your lower back into a gentle, comfortable amount of traction. 

So what can you do to set your car up for healthy posture?

• If you're in the market for buying a car, examine the carseat. Some brands are better than average in the design of their seats. The Fiat 500, for example, has a head rest that works with healthy neck posture, and has bolsters that do not extend all the way up shoulder level. 
  
  
  The Fiat 500 is an example of car model that has a relatively well-designed carseat.
   
• The Stretchsit cushion is remarkably effective in mitigating a lot of flaws in carseat design. It can neutralize the effects of exaggerated lumbar support, deep bolsters, and head restraints that jut forward too far. In addition, it facilitates stretchsitting, which is healthful in itself, but also dampens the effect of bumps and jolts in driving, especially on bumpy roads.  
  
  
  The Stretchsit cushion helps transform poor carseats into healthy carseats.
   
• Set yourself up with good posture. No matter how good your carseat is, there is no substitute for knowing what to do in your own body. Stretchsitting, which is one of the easiest Gokhale Method techniques, is well suited to driving. Lengthen your spine against a support at the level of your mid-back, roll your shoulders back, elongate your neck against the head rest, and enjoy the ride!

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What kind of car do you drive and how well do the seats work to support you? How have you improved your carseat?