SCIENCE BEHIND

Equine Hanna Somatics® (EHS)

What is POSTURE?

Abnormal or Maladaptive Compensatory Posture

Posture is an unconsciously mediated adaptive process of the nervous system that organizes the body as best it can to remain upright and in equilibrium against gravity and environmental factors, moment by moment, within the range of motion allowed by the current levels of resting myofascial tone. (Mayer 2013)

As horses adapt to their environment, they learn to keep various muscles habitually contracted, creating persistent areas of elevated resting myofascial tonus (aka tension).

It is this persistent tension that pulls the horse out of his or her natural alignment, creates postural patterns, and negatively impacts movement, soundness and well-being.

And once it's learned, it becomes the 'new normal' default posture that is maintained by involuntarily mediated motor output coming from the brain stem...

PHOTOS: Horses who presented with various examples of the characteristic maladaptive compensatory habitual postures typically reversible with Equine Hanna Somatics® Education.

REFERENCES

Cacciatore, T. W., Anderson, D. I., & Cohen, R. G. (2024). Central mechanisms of muscle tone regulation: implications for pain and performance. Frontiers in neuroscience, 18, 1511783. https://doi.org/10.3389/fnins.2024.1511783

Criswell, E. & Mayer, A. (2006-2025) Equine Hanna Somatics® Professional Training Program Manual

Hanna, T. (1988) Somatics - Reawakening the Mind’s Control of Movement, Flexibility and Health. Da Capo Press

The PROBLEM

Chronic tension is a natural adaptive response to stress, trauma and repetitive motion. Manual therapy, stretching and strengthening or conscious efforts at controlling posture or 'relaxing' do not address the centrally controlled 🧠 nervous system complexities underlying muscle tone...(Cacciatore et al. 2024)

Vets, bodyworkers, physiotherapists, riders and trainers have always known relaxation and 'releases' were essential, but they were impossible to define, explain or access on demand. UNTIL NOW.

What is PANDICULATION?

Pandiculation, nature's postural reset.

Pandiculation is a natural behavior that contributes to the development and maintenance of a horse's neuromuscular integrity and mind-body integration at all ages and stages of life.

All animals spontaneously pandiculate, typically after a period of inactivity like sleeping or being confined.

Pandiculation can be done standing or laying down (ie. recumbent), and looks like a symmetrical full-body stretch, often accompanied by a yawn - or it can involve just one or two limbs at a time, or one limb and the neck, or wing… there are many variations on the ways different animals pandiculate.

Foals even pandiculate in their mother’s womb, and have been observed pandiculating up to 80 times per day after being born, as soon as on their 3rd day of life!

PHOTO: Aged Arabian mare demonstrating a spontaneous pandiculation reflex.

REFERENCES

A.F. Fraser, Pandiculation: the comparative phenomenon of systematic stretching, Applied Animal Behaviour Science, Volume 23, Issue 3, 1989, Pages 263-268, ISSN 0168-1591, https://www.sciencedirect.com/science/article/abs/pii/0168159189901172?via%3Dihub

Bertolucci L. F. (2011). Pandiculation: nature's way of maintaining the functional integrity of the myofascial system?. Journal of bodywork and movement therapies, 15(3), 268–280. https://doi.org/10.1016/j.jbmt.2010.12.006

McGreevy, P. (2012). Equine Behavior, A Guide for Veterinarians and Equine Scientists (2nd ed.) Saunders Elsevier

The SOLUTION

Dr. Eleanor Criswell Ed.D. created Equine Hanna Somatics® (EHS) - a hands-on method of helping horses change their own default posture by resetting their resting myofascial tonus (aka chronic tension) back to NORMAL NEUTRAL LEVELS.

EHS is horse-centric somatic education based on the principles of basic neuroscience and the natural tendency of horses to pandiculate.

VOLUNTARY PANDICULATION

EHS is Pandiculation ON-Demand

Instead of treating the horses body manually, we invite the horse to actively participate in the EHS movements, which allows us to work directly with the root-cause of most muscular tension - the brain and the way it organizes the body for movement.

By working WITH the horse's brain to engage the Pandicular Response on-demand, we can access the existing pathways and programs of the horse's nervous system to efficiently target areas of habitual tension - and facilitate the horse in normalizing them from the inside.

Equine Hanna Somatics® is the only system that teaches you how to safely and reliably harness the power of Pandiculation to help horses effect rapid and permanent changes ​to their own baseline levels of muscle tension.

ILLUSTRATION: ©2013 Horse Brain by Barbara Chasteen, from Equine Hanna Somatics - Session 1 (introductory course)

REFERENCES:

Criswell, E. (2021) How Eleanor Criswell Created Equine Hanna Somatics (originally published 1997, Somatics Magazine: Journal of the Bodily Arts and Sciences) https://blog.equinehannasomatics.org/post/creating-equine-hanna-somatics

Hanna, T. (1990) Clinical Somatic Education: A New Discipline in the Field of Healthcare. Somatics Magazine: Journal of the Bodily Arts and Sciences, 4-10.

Before we can accurately assess conformation, asymmetry, soundness, strength or behavioral issues, we must identify and address the involuntary habitual tension that is pulling the horse out of alignment and creating the persistent postural deviations, functional weakness and crookedness everyone is trying to correct.

Characteristic Equine Postural Presentations

The most common maladaptive compensatory postures are caused by habituated stress-responses, which typically present in one of three easily recognizable postural patterns:

The Green Light Reflex

The Green Light Posture shows up when a horse is startled, afraid or excited, and is commonly known as "fight or flight." This is the Startle/Action Response.

Habitual contractions above the vertebral column produce spinal extension, downward pressure on the thorax, a camped out limb position, and...

The Red Light Reflex

The Red Light Posture shows up when a horse is withdrawing from their reality, usually because they cannot escape confinement or pain, and is commonly referred to as "shut down" or "introverted." This is the Withdrawal Response.

Habitual contractions below the vertebral column produce spinal flexion, a camped under limb position, and...

The Trauma Reflex

EHS Equine Trauma Asymmetry Posture

The Trauma/Asymmetry Posture (ie. crookedness) is often mistaken for laterality or "natural asymmetry" and it shows up when a horse is contracting the muscles on one side of their body more strongly than the other. This is an Antalgic (pain-avoidance) Response involving the withdrawal and crossed-extensor reflexes that becomes habituated, or is learned from repetitive motion or asymmetrical bracing...

"The role of Equine Hanna Somatics® is to help a horse's brain recognize inefficient and unconscious muscle contractions that are no longer useful, so they can regain conscious control over their own muscles and, therefore, also regain access to their full range of motion, comfort, strength and endurance.”

- Alissa Mayer, Director of the EHS Professional Training Program

BENEFITS

Case Studies and Published Research

Cognitive Enhancement

Athletic Performance

Injury Prevention

Real-life stories and studies that show the benefits of Hanna Somatic Education on body & mind.

Felicitas von Neumann Cosel & Tonico do Top Hanna Somatics

Grande Prixe Dressage Before/After Videos - Hanna Somatics for Rider & Horse

March 11, 20203 min read

Felicitas von Neumann-Cosel is a top international Grand Prix trainer, rider and coach who has trained out of First Choice Farm in Maryland for the last 36 years. Winning many championships on all levels, she is mostly known for her beautiful position and ability to train horses in classical self-carriage.

This testimonial first appeared in the January 2018 issue of Dressage Today:
(Scroll down for the Before/After videos!)

"For many years, I had searched for a solution to my chronic back pain that threatened the end of my riding career. Almost three years ago I found Hanna Somatics (HS). This approach to gentle body movements has not only made an amazing difference in my ability to manage my back pain, it has made an enormous difference in my riding position.

After my first few sessions, I learned that there was HS for horses—Equine Hanna Somatics (EHS). At the time I was riding Tonico do Top, a very successful 15-year-old Lusitano stallion, in his last season at Grand Prix. He was not a big mover by nature, therefore it took years to develop him in an athletic way so he was able to flow with cadence and jump. He always had to work hard to stretch his physical limitations and I was always looking for ways I could help him.

As much as HS was helpful for me, I was very doubtful how it could work with a horse. But curiosity and intrigue won over doubt, so I ordered the DVD for EHS. Watching it, I was still very skeptical, but since I had taken it that far I thought I might as well give it a try. I started with the leg lifts for Tonico. It took me exactly one round of lifting his legs and I could not believe how much it reflected everything I felt when I rode him. For example, in the right-lead canter he would come down too fast on his right front leg, which took away some of the flow and was obvious to me in the flying change to the right. When I tried to work with his leg lift in the right front he was not able to put it down slowly and softly. Once Tonico relearned to let that front leg down smoothly, his canter and the flying change to the right improved greatly. There were many other things I found working with his hind legs, back, neck and ribs. It was an enormous time commitment, but I could feel an improvement in Tonico under saddle right away. I also found that EHS exercises became an invaluable tool at horse shows, when Tonico would be very tight after shipping.

The more I worked with Tonico, the more I realized that I did not know enough about the approach and, unfortunately, there wasn’t anyone in my area teaching it. I decided to reach out to the founder, Eleanor Criswell Hanna, thinking all she could do was not answer if she thought I was too forward. It turned out that she was most gracious and lovely, immediately willing to answer my questions. Later that fall she actually traveled to the East Coast to spend a couple of days working with the horses and me.

EHS is a wonderful tool that really is available to anyone. In my case, I know it was a huge contributing factor for Tonico to be able to go on and finish his last show season, becoming BLM Grand Prix Champion for a fourth year in a row, BLM Grand Prix Freestyle Champion for the third time and a repeat winner of the GAIG Grand Prix Freestyle Championship."

-Felicitas von Neumann-Cosel

BEFORE Hanna Somatics & Equine Hanna Somatics (2014)


AFTER Hanna Somatics & Equine Hanna Somatics (2015)


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blog author image

Alissa Mayer BSc(Equine) C-EHSE

Alissa Mayer is the Director of the Equine Hanna Somatics Professional Training & Certification Program and founder of the Association for Equine Hanna Somatics Education (AEHSE).

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EHS is not something that can be done TO a horse by the practitioner, but is a voluntary activity the horse engages in - a conversation the horse has WITH their own nervous system.

GET THE INTRODUCTORY ONLINE COURSE:

Equine Hanna Somatics - Session 1

Equine Hanna Somatics® is the only system that teaches you how to harness the powerful natural reflex of Pandiculation to help horses effect rapid and semi-permanent changes ​to their own baseline levels of muscle tension - from within.

Disclaimer: Equine/Canine/Human Hanna Somatics is not bodywork or manual therapy, and is not a diagnostic or treatment tool. The information included on this website and in any affiliated programs is is intended for educational purposes only and is not meant to take the place of professional veterinary or medical advice, may not be current, and is subject to change without notice. We encourage all members of the community to seek guidance from a licensed veterinarian, physician or allied healthcare practitioner regarding specific medical concerns or questions about your own or your animal’s health.

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