When hypermobility hides behind a Chiari diagnosis

Most hypermobile people I work with have seen a long list of doctors before they ever try a Feldenkrais® lesson. A study published this month helps explain why.

A study worth explaining in plain terms

Researchers surveyed 354 patients. All of them had gone through the same surgery for a finding at the base of the skull called a Chiari malformation. Then they split the group in two. One half had at least one relative with the same finding. The other half did not.

The two groups looked very different underneath. In the family history group, slightly over half also had a connective tissue disorder, most often Ehlers-Danlos syndrome. In the other group, that number was under a fifth. The family history group was also far more likely to have unusually flexible joints, joints that slipped out of place easily, and dizziness when standing up (a condition called POTS). The paper, published on July 22 in Neurosurgery, put it plainly. When Chiari runs in a family, hypermobility often runs in the family too.

Why this matters outside of neurosurgery

You do not need to have Chiari for this to matter. I see this pattern all the time, with or without a label attached.

Someone arrives with a diagnosis for the loudest symptom. Migraine. Dizziness. Neck pain. Trouble with balance. Sometimes a surprise finding on an MRI. What often goes unnamed, sometimes for years, is the underlying joint flexibility that has been shaping how their body holds itself the whole time.

By the time they reach a Feldenkrais lesson, most are carrying two problems. The first is the one on the chart. They have been told to protect it and manage it. The second is quieter, and no scan picks it up. The body cannot reliably feel where its own joints are.

If you cannot easily feel where your neck is, you brace it. If you cannot feel where your shoulder ends, you overshoot. What looks like weakness or wobble from the outside is often a body coping. It is filling in for information that never arrives clearly.

What I see in the studio

One woman in her fifties had spent thirty years quietly gripping her hip, because she never quite knew where it was. She did not call it gripping. To her, that was just how her hip felt. And there is a younger man whose neck pain eased once he noticed his neck had been braced for years against a movement it was afraid to make. Neither of them thought of themselves as hypermobile. They grew up believing they were just clumsy, or a little slow, or the kind of person whose ankle rolls for no reason.

Then we start naming what is actually happening, and the clumsiness looks different. It was never slowness. It was a body doing its best with a foggy internal map.

The instinct, and a different offer

The usual instinct with a hypermobile body, and the advice most clients have already heard, is to make it more stable. Strengthen the small muscles. Limit the range. Stop bending so much. That is reasonable, and it sits alongside physiotherapy for anyone already working with a clinician. But it does not teach the body the information it is missing.

A Feldenkrais Method® lesson offers something different. Not stability instead of flexibility, but feeling instead of guessing. We slow a movement down until the joint has time to report where it is. We keep the effort small, so the person can feel the signal underneath rather than the strain of holding a shape. The Feldy online movement program is built on this: slow, small, comfortable, done lying down, giving the nervous system time to build the map it never had.

Yoga, Pilates, and Tai Chi each work with a hypermobile body, and each has real strengths. Their focus is simply elsewhere. They tend not to spend time on learning to feel where an unstable joint actually is, moment to moment. That noticing is where the bracing eases.

What to take from this

If you have a diagnosis, and you also know you are quite flexible, or you sprain joints easily, or you have relatives who do, this study is one more reason to raise the flexibility question with your doctor. It does not change what the imaging shows. It changes what else might be worth looking at alongside it.

And if you simply live in a body that has always been unusually flexible, with or without a medical label, the practice worth building is not more stability drills. It is the slower, quieter work of learning to feel where you are. That is where the bracing eases. That is where trust in movement starts to come back, the trust so many hypermobile people quietly lose along the way.