What Has Fascia Really Got To Do With Chronic Neck Pain and Depression?

A recent paper by Overmann and colleagues has encouraged a familiar leap in interpretation. If people with chronic neck pain and depression show differences in trapezius fascial properties, does that mean fascia is part of the problem, or even part of the answer? It is an interesting study and worth reading carefully. But it also needs caution, because papers like this can quickly be turned into claims they were never designed to support (5).

The study compared people with chronic neck pain and depression with matched healthy controls. The researchers measured the thickness of the deep trapezius fascia with ultrasound and looked at stiffness, tone and elasticity using a tissue compliance device. They found group differences in thickness, stiffness and tone, while elasticity did not differ clearly between groups (5). On the surface, that sounds compelling. A clinical group looked different from a healthy group, and the differences were found in tissue.

But group differences are not the same as explanations.

An observational study can show that two things are found together in the same sample. It cannot tell us which came first, whether one caused the other, or whether both are different expressions of a broader process. So this paper cannot tell us that thicker or stiffer trapezius fascia causes neck pain. It cannot tell us that fascia causes depression. It cannot tell us that fascia is the bridge linking mood and pain. What it shows is more limited, and more honest. In this sample, people with chronic neck pain and depression had some local tissue measurements that differed from those of healthy controls (5).

A broader point to keep in view is that pain and depression already have a well established relationship that does not depend on fascia. A large 2025 systematic review and meta analysis found that clinically significant depressive symptoms were present in 39.3% of adults with chronic pain, while clinically significant anxiety symptoms were present in 40.2% (1).

A wider stress and pain literature points in the same direction. Review level work suggests that chronic primary pain is often associated with altered stress system function, including changes in heart rate, blood pressure, cortisol and heart rate variability, although the evidence remains mixed and not all findings are consistent (7). That gives a much broader picture than a single tissue explanation. It suggests that persistent pain, mood, stress regulation and bodily arousal are all interacting (7).

So where does fascia fit?

Probably as one part of the local landscape, not the whole map.

Tissue can change in response to all sorts of influences. Load, movement habits, reduced activity, guarding, sleep disruption, autonomic arousal, stress physiology and ongoing pain can all affect local tissue properties. If someone has been living with chronic neck pain and low mood for months or years, it would not be surprising if local tissue properties differed from those of someone who is pain free and well. But that is still very different from saying fascia is the origin of the problem. Association is not the same as cause (5).

There is another reason to be cautious. Even if a clinical group shows thicker or stiffer tissue on average, that does not mean those findings are unique to people with symptoms. It is entirely plausible that some people have thicker or stiffer trapezius fascia and no pain, no depression and no clinical problem at all. Human tissues vary. Some variation is simply normal. Some may reflect age, occupation, load history, body size, exercise habits or stress exposure without amounting to pathology (5).

That caution is supported by other studies. Lederer and colleagues looked at people with chronic neck and back pain and found that the more painful side was not stiffer than the less painful side. In fact, many participants had higher tissue stiffness on the side that hurt less. They also found that cupping reduced measured stiffness only briefly, while pain scores improved beyond that short term mechanical change. Their conclusion was straightforward, tissue stiffness might not be related to pain experience in these patients (4).

Other research points in a similar direction. A 2020 study using shear wave elastography found that women with chronic non specific neck pain had similar neck muscle stiffness to asymptomatic controls, despite reporting a greater sensation of stiffness. The measured stiffness was not correlated with pain intensity or disability (2). A 2024 scoping review reached a cautious overall conclusion, the literature on objectively measured muscle stiffness in musculoskeletal pain is inconsistent and does not support a neat rule that pain reliably equals increased stiffness (3).

So when people claim that a painful area must be stiff, restricted, or denser in a way that explains the symptoms, the evidence is not nearly that tidy (2,3,4).

A useful point to keep in mind is that stiffness is not always just coming from the tissue itself. Pain can change how a person moves and how their body responds to movement. Under anaesthesia, muscle tone and guarding may reduce, and movement can become easier. That suggests some of the stiffness was linked to pain related protection, not just the passive properties of the tissue. It does not mean all resistance disappears, because connective tissue, joint capsule and other structures still create passive resistance. But it does remind us that when an area feels tight or stiff, pain may be shaping that response as well as the tissue itself. The stress and pain literature supports the broader idea that pain related protection and bodily arousal are part of the clinical picture, not just passive tissue mechanics (7).

That brings us back to Overmann. The most defensible reading is not that fascia causes chronic neck pain and depression, but that local fascial properties may reflect the broader state of a person living with both. That is a smaller claim, but it fits better with the wider pain literature. Chronic pain is rarely explained well by one structure in isolation. Depression is certainly not explained by trapezius fascia. What this paper may be showing is that a person level condition can show up, in part, through local tissue measures (5).

The next question is the practical one. If fascia is not the whole answer, what about hands on treatment that claims to work on fascia? Can it still help?

Possibly, yes. But the reason it helps is much less clear than the marketing language often suggests.

A second study by Overmann and colleagues looked at myofascial release in adults with chronic neck pain and depression. The study reported short term improvements in pain perception, pressure pain threshold, range of motion, positive affect, heart rate variability and some tissue measures after a single session, compared with a sham laser condition (6). That suggests a hands on session may have useful short term effects. But it still does not prove that the key active mechanism was a unique change in fascia.

That is because hands on care is never just force applied to tissue. It also includes touch, attention, expectation, positioning, communication, the treatment process, reassurance, novelty, movement and the meaning a person gives to the session. The authors themselves note that touch alone may influence autonomic state, and that the sham condition still produced placebo effects (6). So the study was not cleanly separating ‘fascial release’ from the wider effects of being touched and treated in a meaningful context.

That is not a weakness unique to this paper. It is a general challenge in manual therapy research.

A therapist may place hands on the trapezius, but the person receiving treatment is not simply experiencing a mechanical event in a sheet of collagen. They are experiencing contact, sensation, comfort or discomfort, safety, attention, memory, expectation and interpretation. If chronic pain and low mood overlap partly through stress systems, autonomic regulation, poor sleep, reduced movement tolerance and heightened vigilance, then touch may help not because it has uniquely altered fascia, but because it has shifted the wider system in a useful direction (1,6,7).

It is also important to keep in mind that pain is a subjective experience and is not a direct reflection of tissue state. Pain is a protective output, shaped by how the brain interprets possible threat in the moment. From a biopsychosocial perspective, therapists need to think about the state of the body and the way pain is being shaped by context, previous experience, stress, mood, expectation, meaning and the person’s sense of safety. Too often, therapy training has focused almost entirely on body tissues and on which technique should be used to change them. But that is only part of the picture, and often not the biggest part (1,7).

More recent thinking in hands on therapy has started to move beyond that narrow tissue first model. There is growing recognition that touch based care is not just about pressure, direction or depth. It also involves contextual factors, belief, expectation, the therapeutic relationship, communication and the overall meaning of the encounter. What a therapist says, how safe a person feels, what they believe is happening, and how their symptoms are interpreted may all influence pain and movement as much as the local tissue being touched. That does not make tissue irrelevant, but it does stop us pretending that all improvement comes from mechanically changing structure (1,6,7).

That does not mean local tissue changes are irrelevant. It means they should not be overpromoted. Some people may genuinely feel less guarded, more comfortable moving, or less trapped in a painful pattern after treatment. Some local tissue measures may also change in the short term. But the leap from ‘something changed’ to ‘we released pathological fascia and removed the driver of pain and depression’ is far too large. The evidence does not support it (5,6).

A more grounded interpretation is this. Hands on care may help some people with chronic neck pain and low mood, but any benefit is likely to come through several pathways at once. These may include tolerable sensory input, reduced threat, temporary autonomic settling, improved movement confidence, a shift in attention, a more hopeful interpretation of symptoms and the therapeutic value of being met by another person in a way that feels safe and containing (1,6,7).

That also helps answer a question therapists should keep asking, what must we not misinterpret?

We should not misread an association study as proof of mechanism. We should not misread a short term treatment effect as proof that a branded tissue theory is correct. We should not assume that thickness or stiffness automatically means dysfunction. And we should not tell clients that depression is stored in the trapezius, that pain comes from fascial restriction by default, or that releasing fascia is the key to emotional recovery. Those claims are simple and dramatic, which is exactly why they spread so easily. They also go further than the evidence allows (5,6).

So what is the value of the Overmann observational paper?

Its value is not that it proves a fascial cause of neck pain or depression. Its value is that it reminds us local tissues may reflect wider person level processes. It supports a broader way of thinking about chronic neck pain, one that does not split body from mind or tissue from lived experience. It adds a small piece to a much bigger story, the story that chronic pain and mood are intertwined, and that what we measure locally may sometimes be an echo of larger biopsychosocial processes rather than the main cause of them (1,5,7).

For therapists, the practical message is fairly grounded. If someone presents with chronic neck pain and low mood, do not look only at the neck, and do not look only at the emotions. Assess the wider picture. Think about sleep, stress, movement, symptom behaviour, coping, work demands, fear and tolerance over time. Use touch if it helps the person feel calmer, safer or more able to move. Use movement if it builds confidence and capacity. Use reassurance without making false promises. Refer when needed. And when discussing fascia, keep your claims disciplined. It may be part of the picture, but it is not the picture.

In the end, the better question may not be, ‘Is fascia the cause?’ but, ‘What do these findings mean in the life of the whole person?’ That gives a less dramatic answer, but a more useful one. Fascia may matter a bit. Touch may help. But the strongest evidence still points towards a much wider story involving pain, mood, stress regulation, movement, context and meaning as much as any local tissue property (1,5,7).

References

(1) Aaron, R.V., Ravyts, S.G., Carnahan, N.D., Bhattiprolu, K., Harte, N., McCaulley, C.C., Vitalicia, L., Rogers, A.B., Wegener, S.T. and Dudeney, J. (2025) ‘Prevalence of depression and anxiety among adults with chronic pain: a systematic review and meta analysis’, JAMA Network Open, 8(3), e250268.

(2) Dieterich, A.V., Yavuz, U.S., Petzke, F., Nordez, A. and Falla, D. (2020) ‘Neck muscle stiffness measured with shear wave elastography in women with chronic non specific neck pain’, Journal of Orthopaedic & Sports Physical Therapy, 50(4), pp. 179–188.

(3) Haueise, A., McGregor, A.H. and O’Sullivan, K. (2024) ‘Is musculoskeletal pain associated with increased muscle stiffness? An evidence map and scoping review’, Clinical Physiology and Functional Imaging. doi: 10.1111/cpf.12870.

(4) Lederer, A.K., Maly, C., Weinert, T. and Huber, R. (2019) ‘Tissue stiffness is not related to pain experience: an individually controlled study in patients with chronic neck and back pain’, Evidence Based Complementary and Alternative Medicine, 2019, 1907168.

(5) Overmann, L., Schleip, R. and Michalak, J. (2024) ‘Exploring fascial properties in patients with depression and chronic neck pain: an observational study’, Acta Psychologica, 244, 104214.

(6) Overmann, L., Schleip, R., Anheyer, D. and Michalak, J. (2024) ‘Myofascial release for adults with chronic neck pain and depression’, Acta Psychologica, 247, 104325.

(7) Vyverman, J., De Baere, R., Timmers, I., Coppieters, I., Van Oosterwijck, J. and Moerkerke, M. (2026) ‘The stress-pain connection in chronic primary pain: a systematic review and meta analysis of physiological stress markers in relation to experimental pain responses’, Neuroscience & Biobehavioral Reviews, 184, 106604.