How to Do Joint Mobility Drills

Todd Hargrove is probably familiar to many readers as a highly intelligent and good-humored commenter on Paleo blogs. He has a fantastic blog, Better Movement, which Mark Sisson calls one of the “18 Underrated Blogs You Should Be Reading”. Todd began his career as an attorney, but dealing with a chronic pain issue led him to become a therapist with “an obsessive interest in learning about how the body works and a strong empathy for others going through chronic pain”. He is now a rolfer and teacher of The Feldenkrais Method in Seattle.

I’ve noticed that the most sophisticated health and fitness practitioners place a heavy emphasis on brain and nerve function. Todd is one of these; as you’ll see, he offers a brain centered perspective on physical performance, pain and exercise.

Mobility is an extremely important part of good health, whatever one’s age or degree of athleticism. I’m therefore delighted to present this guest post by Todd on “How to Do Joint Mobility Drills.”

Mobility work is about the brain

Dynamic joint mobility drills are becoming very popular, and are starting to replace static stretching as a way to warm up, train healthy movement patterns, and (p)rehab injuries. Mobility work can be defined as deliberate movement through a defined pathway, done repetitively, usually without resistance. Examples include wall slides or arm swings for the shoulders, clam shells or leg circles for the hips, and cat/cows or rotations for the spine.

Joint mobility drills have several advantages over static stretching. First, they involve movement, which is good, because you probably want to get better at moving, not just staying still with your limbs splayed out. Second, most of the work in a static stretch is done at end ranges of motion that don’t get used very often. By contrast, joint mobility drills usually involve movements through the middle ranges of motion where most of life and sport occur. So they promise to have more applicability to real world tasks. Healthy athletic movement at most joints has far more to do with quality of motion than quantity of motion.

So the trend toward mobility drills is a very positive development. However, I believe that people often fail to obtain the full benefit of mobility exercises, mostly because they do not appreciate the neural mechanisms by which they work. The mainstream idea is that joint mobility drills work by making changes to the local muscular and connective tissues involved in the movement. In my opinion, mobility work has only a limited ability to cause significant adaptations in the mesoderm. Instead, it works by making changes to the virtual representations of those structures in the brain. In other words, mobility work is about function not structure, the brain not the body, the software not the hardware, the ectoderm not the mesoderm, the driver not the car.

OK, enough with the metaphorical distinctions. Here’s a detailed explanation what I mean.

Joint mobility drills are a weak stimulus to the mesoderm

There is little reason to believe that joint mobility drills have any notable effects on the local mesodermal tissues that are being mobilized.

Unlike weight training or endurance training, mobility work does not provide enough resistance or energetic demand to cause adaptations in the size or endurance of muscle cells. Unlike stretching, it does not involve enough time at the end ranges of motion to permanently add more muscle or connective tissue length. Unlike sports or other habitual physical activities, it does not create enough mechanical stress to the tendons and ligaments and joint capsules to cause any significant connective tissue remodeling (unless you did thousands of repetitions at a pretty good speed.) Joint mobility drills will provide circulation and warmth to the local tissues and synovial fluids, which is great and totally necessary for health. However, we would expect similar benefits from almost any repetitive motion in the same area.

So why would the specific form of a mobility exercise matter? Why not just move all your joints through all their ranges of motion in any old way? My answer is that mobility exercises work by communicating with the brain, and it will only communicate effectively when it sends the correct signals. Here is a discussion of some neural mechanisms by which mobility drills could improve coordination and reduce pain.

Joint mobility drills improve coordination by clarifying movement maps

Coordination happens in the brain not the body. Some key networks in the brain that sense and coordinate the muscles are called the body maps. The body maps are discrete parts of the brain that are organized in such a way as to represent the different body parts, just as lines on a map represent roads. Each part of the body has a separate area of the brain dedicated to moving and sensing that body part.[1]

Body parts that have greater sensory motor demands have bigger maps. Not surprisingly, the map for the hand is significantly larger than the map for the elbow. Thus, larger and more detailed maps means better coordination. The information necessary to maintain and build the maps is provided by proprioceptive signals from the body. Proprioception occurs when movement or touch stimulates nerve mechanoreceptors, which are located all over the body and primarily in joints.

You can sense the effects of mechanoreception on your maps instantly by doing a simple experiment. Try to imagine or sense the exact shape and position of your ears. Now rub just the left ear for a few seconds and then compare your ability to sense the left ear and the right. You will note that it is much easier to form a clear picture of the left ear. The simple reason is that touching the ear activated its mechanoreceptors, which sent a signal to the brain, which excited the neurons in the map for that area. Of course, the additional clarity in the map is only temporary, and after a minute your ears will feel the same.

In order to make long term changes in the maps, you need to place demands on them consistently over a long period of time. When a certain movement is used repeatedly in a coordinated and mindful fashion, there are actual physical and observable changes in the part of the brain that controls that movement. For example, the finger maps in a braille reader’s brain are observably larger than the counterpart of the average person.[2]

While movement will clarify maps, lack of movement will tend to blur them. In a famous experiment, researchers found that sewing a monkey’s fingers together for a few weeks caused its brain to map the fingers as one unit, not as two separate parts capable of individual movements.[3] We would expect similar map blurring to occur when any joint movement is neglected for a certain period of time. This loss of control over previously accessible movements is the neural version of the “use it or lose it” principle, and is sometimes called sensory motor amnesia.

A common area for sensory motor amnesia is the thoracic vertebrae. Most people probably have one or two vertebrae in their upper back that haven’t moved in a certain direction with respect to its neighbor in years. The movement isn’t physically impossible, it’s just not part of the brain’s current movement programs due to neglect. A good analogy might be a language that you could once speak fluently that you haven’t spoken for years. The knowledge is in there somewhere, but a good portion of it is not readily accessible without some brushing up.

The right mobility drill would be structured to require the brain to brush up on its thoracic movement skills and reactivate some rusty movement programs. If the brain remembers how to move a currently static vertebra, the result is an immediate qualitative change in the movement of the entire spine. The decisive change is not to the physical tissues of the vertebral joint, but to the way that the brain maps the vertebrae for sensation and movement.

Blurred maps can create pain

Accurate maps also have important consequences for how we feel. Phantom limb pain is a dramatic example. Many people with an amputated limb experience pain in the missing body part. This is because even though the arm is gone, the virtual arm in the brain lives on, and can be stimulated by cross talk from nearby neural activity. When this occurs, the brain creates a sensation of the missing arm that is incredibly realistic and often excruciatingly painful.

Some pain researchers believe that less severe instances of mapping errors may be involved in many chronic pain conditions. Numerous studies have shown that sensory motor illusions caused by mirrors or other tricks can cause pain. For example, if you immerse your index and ring fingers in warm water and the middle finger in cold water, this will often cause your middle finger to feel painfully hot. Other studies have shown that pain from these illusions can be alleviated with proprioceptive input that corrects distortions in the maps.[4] For example, an amazing treatment for phantom limb pain involves placing the remaining limb in a mirror box in such a way that it fools the brain into thinking the missing limb is alive and well! Based on these and other studies, many pain researchers believe that clarifying the maps is a promising treatment for many forms of chronic pain.[5]

Movement creates sensory gating

Mobility drills can also reduce pain by sensory gating. Sensory gating means that the processing and perception of sense information is reduced by the presence of competing sense information. If your nervous system is busy trying to process signals resulting from movement or touching, it has less ability process signals caused by tissue damage (nociception). Most people will instinctively take advantage of sensory gating by rubbing an area that has just been injured. The rubbing sends sensory signals to the brain which compete with the damage signals. If you feel temporarily better after a massage, exercise, or yoga, sensory gating is probably a major reason why.

How to maximize the benefit of mobility exercises

Based on the foregoing, there is good reason to believe that the brain should be the primary target for joint mobility work. With this in mind, here is a quick list of rules to keep in mind when doing mobility work.

1. Avoid pain and threat. If you create pain while doing joint mobility drills, the brain will attend to the pain and ignore the potentially interesting proprioceptive information.  Further, the brain is not interested in adopting a new movement pattern that is threatening. Make sure the movement does not cause too much discomfort or create other signs of threat such as holding the breath, grimacing, collapsing your posture, or using unnecessary tension.

2. Be mindful and attentive to what you are doing. Attention enables neuroplasticity, which is the goal. The brain receives massive amounts of sensory information each second and will ignore any inputs it deems irrelevant, uninteresting or redundant. If you pay careful attention to what you are doing during mobility drills, the brain will place a higher value on the resulting proprioceptive information and be far more likely to make changes to your movement maps.

3. Use novel movements. The brain is more likely to pay attention to a stimulus that is novel. Most joint mobility drills incorporate novelty already and that is why they work. However, endlessly repeating the same drill will have diminishing returns. So you might want to change things up from time to time to keep the brain interested.

4. Easy does it. The benefits of moving slowly and gently to improve coordination have been recognized by martial artists, elite athletes and musicians for a long time. The scientific explanation for why slow and easy works requires a post of its own, but here is a start. Slow and easy movement works because it: is inherently non threatening; is less likely to cause pain; allows you to find movement angles that would be missed at higher speeds; improves the proprioceptive signal to noise ratio; allows greater opportunity to focus on the subtle differences in joint movements; and, under the Weber Fechner rule, less force equals greater ability to discriminate in the amount of force used.[6]

5. Be curious, exploratory and playful. Motor learning is greatly facilitated by a curious playful attitude. All animals engage in the most play during the times of their lives when the educational demands are the highest. This means that play is the best solution to difficult education problems that evolution has found. With this in mind, use mobility work as a way to experiment with subtle variations of how to move and figure out which ones work best.

Conclusion

Next time you do some joint mobility drills, move slowly and carefully, completely avoiding any discomfort. Reduce speed and range of motion as necessary. Use the minimum amount of force and effort to get the job done. Pay careful attention to exactly what you are doing and play with subtle variations to assess which are most efficient and comfortable. Try a few repetitions at the slowest speed you can possibly move. Then see how you are moving. I think you will see some improvements. Good luck!

Endnotes

1. http://en.wikipedia.org/wiki/Cortical_homunculus

2. http://www.sciencedirect.com/science/article/pii/S1364661398011723

3. http://jn.physiology.org/content/66/3/1048.abstract

4. http://www.cell.com/current-biology/abstract/S0960-9822%2810%2901060-2

5. http://www.ncbi.nlm.nih.gov/pubmed/12909433.

6. http://en.wikipedia.org/wiki/Weber%E2%80%93Fechner_law

Leave a comment ?

22 Comments.

  1. Adherents of yoga will recognize this as true.

  2. Guest Post at Perfect Health Diet Blog | Better Movement - pingback on July 26, 2011 at 6:09 pm
  3. Interesting post. I’ve always been keen to try tai chi, which, like yoga, is full of novel movements.

    The work being done with neural plasticity & and brain mapping is facinating, especially for those suffering (and recovering) from injury or amputation.

    Random fact: It’s known that in some people the genitals & feet are closely mapped in the brain, which might explan foot fetishes!

  4. Hi erp,

    Yep!

    Hi Robert,

    Never thought we’d get into foot fetishes on this blog!

  5. Science knows no bounds 😉

  6. Tai chi is an interesting thing. If done well it includes many health movements/exercises based on traditional chinese medicine, some strengthening and lots of balance work (standing on one leg, fast turning, backward movement).

    All of which are done very similar to the mobility drills described by Todd, but with a special focus on coordinated whole body movement for every movement. I’m sure Todd is aware of the need to look at the whole body to correct problems with a certain movement but that idea is kind of missing in the description above.

  7. Since spending much time at a computer, I’ve had to do several sets of hip mobility drills before each workout to prevent low back pain. Hip and shoulder mobility sessions are like magic for making me feel better, and I’m just 24.

  8. I don’t really like “exercise” for this application as the repetition invites lack of attention.

    If you are interested in filling out the brain’s maps some more interesting reading;

    Sharon Begley
    http://www.amazon.com/Train-Your-Mind-Change-Brain/dp/1400063906

    Norman Doidge (also has a brain book, “the brain that changes itself”)
    http://www.normandoidge.com/

    I prefer Feldenkrais over “drills”. You can google Feldenkrais, and both books above mention it.

    You didn’t post the legally required links when talking about brain maps:

    http://www.google.com/search?client=ubuntu&channel=fs&q=sensory+cortex+homunculus&ie=utf-8&oe=utf-8

    http://www.google.com/search?q=sensory+cortex+homunculus&hl=en&client=ubuntu&hs=XZT&channel=fs&prmd=ivns&tbm=isch&tbo=u&source=univ&sa=X&ei=cEswTofYNaq1sQLHotFG&ved=0CDMQsAQ&biw=1017&bih=617

  9. > I don’t really like “exercise” for
    > this application as the repetition
    > invites lack of attention.

    realizing of course that one can bring the attention back when it wanders …

    this is simply the observation that many “turn off” when given something under the label “exercise”

  10. Todd has great and insightful advice. I’d add as an important footnote, however, that adhesions and contracted connective tissue can mechanically limit normal range of motion, and hence can present a distinct problem.

    They are sometimes real, not illusory, which is clear because (1) it would be surprising if mechanical problems didn’t happen sometimes, and (2) this sort of problem sometimes responds to, for example, brute force tearing, complete with internally audible ripping sounds.

    Even with these occasional mechancial problems (which call for a different approach) Hargrove’s approach may often address 90% of the whole-body, systemic problem, including the problem of recurrence.

  11. RobertYYZ,

    Yes many connections between different parts of the body are actually connections in the virtual bodies in the brain.

    Patrick F,

    Tai chi is almost always done in a way that would observe all my guidelines. The Feldenkrais Method, Z Health and Alexander Technique are also good examples. Yoga done properly qualifies (although I would prefer more movement and less static holds.) I agree with the whole body idea, that would be a good point for inclusion.

    Thanks Paperdigger. I agree that fascial adhesions and contracted tissues can be major limitations on movement. Injuries and lack of use are the culprits. But I think that in the absence of injury or surgery, changing structure takes years. I’m very skeptical of the idea that we can structurally lengthen fascia through manual therapy or foam rolling. I think it’s most productive to improve function, and hope that sooner or later form will start to follow function, through Wolff’s law. Might take a while though. But yes, short fascia will definitely impair function.

    Paul,

    Thanks again for the guest post!

  12. I wish I had seen this BEFORE I went to my first Zumba class this morning! My knees are now killing me!

  13. Jane,

    I did yoga for many many years, but when we moved to Florida 20 years ago, I couldn’t find a suitable class, so I switched to hard core aerobics. It was a bad move and ruined my knees. I finally had a full knee replacement last February after years of agony.

    Switch to yoga before it’s too late.

  14. This was a very interesting post, and seems to fit well with my observations post knee surgery. When I first started playing tennis again I was very slow, even when trying my hardest to make a quick movement. My dad said I looked like I was playing with 10 pound boots on. However, 6 months and many hours of practice later, my movement is much improved.

    This also reminded me of myelin and the related theories about the acquisition of skill. Myelination seems to be a key reason why practice makes perfect and why mobility drills would improve movement.

  15. Zachariah Salazar

    The devil is in the details. As a Lead Instructor for Z Health Performance certifications I can state that this information is what is taught at Z Health courses. I must add the details that follow:

    “Unlike weight training or endurance training, mobility work does not provide enough resistance or energetic demand to cause adaptations in the size or endurance of muscle cells.”

    This is only true if you follow the most basic of programs. If you use appropriate loading patterns such as speed to increase load and you participate in similar volumes of exercises then “Mobility” work will cause changes is cells. Part of the issue is at early courses it is taught that precision matters most. It is only after the athlete has built enough resilience to the movements that the athlete can safely tolerate the forces and volume of work to elicit such change.

    Part of the problem is the general use of the term mobility vs. the use of mobility as a tool to drive cortical change vs familiar exercise. The term has become one of separation vs one of inclusion.

    Foe example: a shoulder circle done to the side of the body imparts forces and tissue change based upon speed length of limb and volume of work to the shoulder etc. If you bend the elbow you shorten the lever reducing tissue load. If you increase speed that increases load. If you perform the move in water that increases and changes the type of load. If you change the size of the circle you change the load. If you decrease the degrees of freedom (go from a circle to a line) you change the load. If you bend the elbow and reduce the motion to an up and down line and add a weight POOF you are doing an overhead press. Avoid the separation between Z Health weightlifting gymnastics yoga etc and use the system for what it is for: ORGANIZING movement data for ease or use, common description among professionals and the ability to add precision-the most common “fail” when a system of movement doesnt work. Remember its not the system that matters its the individual.

    So you can go from a slow small shoulder circle to a large violent one to a bent elbow vertical shoulder motion (like a sprinters arm) to a straight arm overhead hold like used in a yoga pose to a bent arm vertical line with a dumbbell-they all are mobility and all of them can use instruction as a recipe for success as long as the goal fits the health of the individual.

    “Unlike stretching, it does not involve enough time at the end ranges of motion to permanently add more muscle or connective tissue length.”

    This again is a programming issue not an issue with movement. If the parameters are met the tissue will change.

    “Unlike sports or other habitual physical activities, it does not create enough mechanical stress to the tendons and ligaments and joint capsules to cause any significant connective tissue remodeling (unless you did thousands of repetitions at a pretty good speed.) ”

    So here what I am saying is stated then dismissed. I prefer to state: Like ANY movement, only if the load and volume meets the requirements for morphological change will change occur. I guarantee one of the warrior poses will change tissue more than the corpse pose. So Yoga does what you ask of it for your body-just like Z.

    “Joint mobility drills will provide circulation and warmth to the local tissues and synovial fluids, which is great and totally necessary for health. However, we would expect similar benefits from almost any repetitive motion in the same area.”

    Yes up until the limits of the system are met. the the system has to have a way of progressing the athlete or patient to further success-or new instruction must be added to the mix.

    The other part that is missing is that since the Precision Movement of Z is centered on creating cortical remapping using a multi sensory approach, the drills can change range of motion and tissue tone with a high degree of reps. It is person and tissue specific. If you decrease resting tonus of tissues less load will be present as residual tension. The body is constantly changing based upon stressors. A change in movement will cause a change in structure as a secondary event. Just as a Tai Chi practitioner improves strength and flexibility their body will change based upon how the body moves in everyday life.

    Lastly i would like to state that Todd has been a skillful practitioner of Z for many years and like myself continues to collect methods and build models to help others. I am stating these details as additions to the information. These are the “next question” questions we get to answer at certifications all the time. I thought I would add some detail before these questions were mentioned to save time.

    Z Health is NOT a mobility system. It is a health performance system that happens to use mobility as a stim for proprioceptive feed back and tissue change as well as organization and assessment of movements. So you can be a Yogi, a martial artist, a Pilates instructor, a kettlebell instructor, a barefoot runner, a weightlifter, a golfer etc and be a Z practitioner. Like I stated before Z Health is an education company that gives access to sensory somatic neuroplasticity rules for people. And people can use it in their chosen craft. Its not a closed system its a system that allows Feldenkrais practitioners, personal trainers, nurses and surfers access to the current info to allow people to help others and themselves. In the Master Program there have been docs chiros dancers basketball players surfers tennis pros-the list goes on.

    Its funny when you meet trainers at certs that havenet blended completely their passions with the curriculum. I asked a trainer that had been practicing Z for a few months what they used in their sessions and they proudly replied “Z”. I said “Of course you do thats why you are here. But what do YOU do with it.”

    The individual makes the system great not the other way around 🙂

    zzzzzzzzzzzzzz

  16. Sunday Reading 30.07.11 - pingback on July 31, 2011 at 3:20 am
  17. You gotta move. « Movements Afoot’s Blog - pingback on August 1, 2011 at 7:14 am
  18. Tuesday 8/2/11 | Derby City CrossFit - Louisville, KY - pingback on August 1, 2011 at 9:01 pm
  19. How to Do Joint Mobility Drills | Low Carb Daily - pingback on August 4, 2011 at 12:02 pm
  20. How to Do Joint Mobility Drills | Way to Lose Fat - pingback on March 8, 2012 at 6:00 am
  21. Paleo Juicing - pingback on March 19, 2013 at 8:25 am

Leave a Comment


NOTE - You can use these HTML tags and attributes:
<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

Trackbacks and Pingbacks: