Myofascial Release, Trigger Points and the Role of Tuning Forks

Myofascial Release, Trigger Points and the role of tuning forks

If you have ever had a stubborn area of muscular tension that seems to keep returning, you may have wondered what is actually happening beneath the skin.

We often describe these areas as “knots”. In clinical language, some may be described as myofascial trigger points: sensitive areas associated with a taut band of skeletal muscle that can produce local or referred pain when stimulated. They are common in musculoskeletal pain, particularly around areas such as the neck, shoulders and lower back.

But the idea that a trigger point is simply a little knot of tissue that needs to be physically broken up is probably too simplistic.

Our understanding of muscle pain and fascia has changed considerably. Muscles do not work in isolation. They are surrounded and interconnected by connective tissue, and this tissue contains sensory receptors that provide information about pressure, movement, stretch and vibration. The nervous system is continuously receiving and interpreting this information.

That makes myofascial work rather more interesting than simply finding a tight spot and pressing on it.

What is a Trigger Point?

The term myofascial trigger point has been used for many years, although there is still debate about exactly how trigger points should be defined and diagnosed.

An international group of researchers and clinicians reached a consensus that a trigger point is associated with a taut band in a muscle and a hypersensitive spot within that band. Stimulation of the area may also produce referred pain — pain that is felt somewhere other than the precise point being pressed.

There is also a distinction between active and latent trigger points. An active trigger point can reproduce a person's familiar pain, whereas a latent trigger point may be tender when pressed without producing the person's usual symptoms.

This is useful clinically because it reminds us that tenderness is not necessarily evidence of a damaged or “stuck” piece of tissue. Pain is an experience produced by the nervous system in response to sensory information, and the sensitivity of that system can change.

A trigger point can therefore be thought of as part of a much larger interaction between muscle, connective tissue and the nervous system.

Fascia is more than a covering

Fascia is the connective tissue that surrounds and interpenetrates muscles and other structures throughout the body. It forms a continuous three-dimensional network, helping transmit forces between different tissues and contributing to movement and stability.

It is also highly innervated.

Research over the past couple of decades has changed the way fascia is viewed. Rather than being simply a passive wrapping around muscle, fascial tissue is increasingly understood as a sensory and mechanically responsive tissue. It contains receptors that respond to mechanical changes, and its cells can respond to physical forces through a process known as mechanotransduction.

Mechanotransduction is simply the conversion of a mechanical stimulus into a biological response. Cells are constantly responding to forces placed upon them. This happens throughout the body and is an established part of normal physiology.

What is less certain is exactly how different manual and mechanical therapies influence this process in living human tissue. This is where some of the more extravagant claims about fascia go beyond the evidence.

There is little reason to imagine that fascia is being “melted”, “broken apart” or physically pushed back into position during an ordinary myofascial treatment.

The body is more complicated than that.

So what does myofascial release actually do?

“Myofascial release” is a broad term covering a number of hands-on techniques. Research suggests that these approaches can produce changes in pain, flexibility and range of movement, at least in the short term, but the mechanisms are not completely understood.

Some of the change may be mechanical. Applying pressure or movement to tissue can temporarily alter its stiffness and how different tissue layers move relative to one another.

Some may be neurological. Pressure, stretch and movement all generate sensory information, and changing that information can influence how the nervous system interprets an area of the body.

This may help explain something practitioners see regularly: a person can experience less discomfort and move more freely after treatment without there necessarily having been a permanent structural change to the tissue.

In other words, a therapeutic response does not require us to assume that a physical “knot” has been crushed or dissolved.

A change in sensitivity, muscle activity, movement or perception can be enough to make a meaningful difference.

A 2024 systematic review of myofascial release techniques found evidence of improvements in several biomechanical measures, including flexibility and range of movement, although the studies varied considerably in their methods and the researchers noted that there is still no clear agreement about the most effective way to apply these techniques.

Where vibration with weighted tuning forks becomes interesting

This is the part that particularly interests me in my own work.

Manual pressure is one way of stimulating the body's sensory system. Vibration is another.

When tissue is exposed to mechanical vibration, sensory receptors respond to the oscillating movement. Vibration can therefore provide a very different sensory input from sustained pressure or stretching.

There is some clinical research supporting this idea.

A randomised controlled pilot study investigated low-frequency vibration in people with chronic non-specific neck pain and myofascial trigger points. The participants received vibration treatment over the affected muscles and showed improvements in pressure-pain sensitivity, neck pain and disability compared with a no-treatment control.

What the research does give us is something more modest and, in my view, more interesting: there is evidence that mechanical vibration can influence pain sensitivity and musculoskeletal function. The precise effects depend on how the vibration is produced, its frequency, amplitude, duration and where it is applied.

Why use a weighted tuning fork?

A weighted tuning fork produces vibration that can be felt when the stem is placed directly against the body.

Unlike an unweighted fork, which is primarily designed to produce an audible tone, the weight increases the mechanical component of the stimulus. The vibration becomes something that can be felt through the tissues as well as heard.

When I use a weighted fork in myofascial work, I am not thinking of it as a tool for physically breaking up a trigger point.

I am interested in the combination of mechanical vibration and sensory input.

A particular area may feel dense, tense, sensitive or restricted. Rather than repeatedly applying strong pressure to force the tissue to change, vibration offers another way of approaching it.

The response can be subtle. Sometimes there is a noticeable change in tenderness. Sometimes movement becomes easier. Sometimes the person simply becomes more aware of an area that previously felt disconnected or difficult to sense.

Those responses are worth observing without necessarily attaching a grand explanation to them.

From the sole of the foot towards the spine

This is one of the reasons I developed my Sole-to-Spine Reset within Myofascial Flow Therapy™.

The foot is not separate from the rest of the body's movement system. The plantar tissues, ankle, calf, hamstrings, pelvis and back all contribute to how forces are transmitted through the body during standing and movement.

The superficial back line is a useful anatomical model for describing some of these relationships. It links structures along the posterior aspect of the body, from the plantar surface of the foot through the lower leg and posterior thigh towards the pelvis and spine.

Working with the foot can therefore be a useful way of exploring tension and movement elsewhere in the body, particularly when the treatment is combined with observation of how the person actually moves and feels.

The nervous system is part of the picture

Perhaps the most important thing to remember when working with persistent muscular tension is that tissue and nervous system cannot really be separated.

Pain changes the way we move. The way we move changes the loads placed on tissues. Those changes provide new sensory information to the nervous system, which in turn influences muscle activity and our experience of discomfort.

This doesn't mean that pain is “all in the mind”. Quite the opposite. It means that pain is a biological process involving the tissues, peripheral nerves, spinal cord and brain.

Mechanical stimulation is one of the ways we can influence the sensory information entering that system.

Vibration is particularly interesting because it can provide a strong, clearly defined sensory stimulus without requiring the deep or uncomfortable pressure sometimes used in trigger-point work.

That may be one reason why some people find vibrational treatment surprisingly effective even when the physical pressure is relatively light.

The tuning fork is not the whole treatment. It is a tool within a broader process involving touch, observation, anatomical understanding, sensory awareness and the body's own response.

And perhaps “release” is best understood not as something we force the body to do, but as a change we observe: less sensitivity, greater ease of movement, a softer quality of tissue, or simply the feeling that something has become easier.

The science is developing. Our understanding of fascia, mechanosensation and pain is becoming more sophisticated, and weighted vibration sits within that conversation as an intriguing physical stimulus,

References

Gerwin RD, Dommerholt J, Shah JP. An Expansion of the Myofascial Pain Syndrome Diagnostic Criteria. Journal of Musculoskeletal Pain.

Hidalgo-Lozano A, et al. Effect of vibration therapy on neck myofascial trigger points: a randomized controlled pilot study. Clinical Biomechanics. 2020.

Effect of myofascial release techniques on internal biomechanics and their resultant application to sports: a systematic review. Journal of Bodywork & Movement Therapies. 2024.

Sadeghnia M, Kajbafvala M, Shadmehr A. The effect of friction massage on pain intensity, pressure pain threshold, and range of motion in individuals with myofascial trigger points: a systematic review. BMC Musculoskeletal Disorders. 2025.

Needling trigger points for treating myofascial pain syndrome: a systematic review and meta-analysis. Complementary Therapies in Clinical Practice. 2025.