Fascia System

The system that connects every organ, every muscle, every ligament and bone. The fascia system used to be thought of as just connective tissue, however modern research has show that it is also a communication network. Fascia is a dynamic, adaptable connective tissue network that transmits force, enables sliding between tissue layers, supports proprioception and interoception, and responds continuously to these inputs. Newer research indicates that it is a cohesive organ system that facilitates communication between all tissue types. Among its function is the uptake and management of fluids, a neural network that stores memories. But one of the most important is the experience of the self in relation to gravity. This is the fundamental nature of myofascial and structural bodywork. By giving feedback to this system and reorienting through movement, the entire web becomes informed and re-educated about its range of possibilities and differentiation of movement from core through the extremities. Nerves within this network influence the very perception of who we are in this human body, how we carry ourselves and how we feel inside it. The fascial system is much more innervated than the muscle, so the sensations of the body actually belong to this organ. there ate 10 times more sensory receptors in the fascia than there are in muscle. So its the wholeness of this system that feeds into specific areas of tension and pain.

So lets get to the fascial web. If we were to dissect the human body, it would appear as a greasy mess cushioning joints and containing organs and tissues of all sorts. in functionality it is a web that allows the skeleton to float against gravity in a balanced way. From skin to core, every cell is hooked into the fascia. It is the extracellular matrix, composed of collagen, elastin and reticulin fibers. Colloidal gells, such as heparin, fibronectin and hyalaronic acid (which diminishes significantly in production by the age of 40), and water. Among this matrix are fibroblasts and mast cells, which respond to demand and injury.  Collagen types, cross-linking, elastin content, proteoglycans, and other ECM ( extra cellular matrix) molecules determine tensile strength, elasticity, and remodeling capacity. Glycation (e.g., in hyperglycemia/diabetes) increases abnormal cross-links and stiffness. The collagen fibers are bound together by an array of glycoaminoglycans, a type of mucopolysaccarides. These mucuous molecules display mutable properties- they open and absorb water due to hydrophilic effects and lubricate the joint, or close and bind themselves when water is absent. Fascia’s viscoelastic and lubricating properties depend heavily on fluid content and matrix composition. This is where hydration with minerals and electrollytes proves to be critical for movement and function. The lengthening in the tissue comes from proper hydration which allows the collagen fibers to glide along eachother. When the tissue is dehydrated, that is when we are most vulnerable and brittle. Most injuries occur when this tissue is stretched faster than it can respond.

Movement, loading, posture, and mechanical stress are primary drivers of fascial adaptation:

Loading and exercise stimulate collagen remodeling and influence stiffness, elasticity, and force transmission along myofascial chains. Appropriate loading reinforce the fascia; chronic overload or repetitive strain lead to densification or fibrosis. Meanwhile immobilization, disuse, or sedentary behavior increases hyaluronan concentration and viscosity, reducing gliding between fascial layers, and decreasing overall tissue resilience. Stretching and specific mechanical stimuli (e.g., shear forces) can mobilize hyaluronan, reduce viscosity, and promote remodeling via mechanotransduction pathways involving calcium signaling and fibroblasts/myofibroblasts.

Hyaluronan (HA) in the loose connective tissue between fascial layers enables gliding. Changes in HA concentration alter viscosity. Immobility, inflammation, low pH (such as from lactic acid buildup, or temperature shifts can increase viscosity and restrict movement (“densification”). Higher temperatures or mechanical shear can reduce viscosity (overstretching ligaments in hot yoga).

The fascial system is known for being marked by trauma, hardening of the lining which effects all other structures in the body.  Trauma, injury, surgery, or poor posture cause adhesions, altered fiber orientation, densification, or fibrosis, impairing sliding and force transmission.

What I have learned in my Physiology training is that connective tissue develops in response to stressors and will become strong only when the function requires. So many of us are dominated by left-right imbalances in our daily lives, especially when it comes to driving a car and manual activities such as playing string instruments, daily chores. This is why I emphasize building up unilateral weakened areas on the body. In order to create balance, the dense built tissues have to be loosened and the weak areas must be tightened. Within this system proprioceptors communicate pain. A weakened overstretched area will give sensations of pain, while robust and built up areas will feel great (their integrity is in tact). The areas that become twisted, impinged, or too short through poor posture affect muscle function and place strain on the weaker and thinner fascial layers. The imbalance can become so great that engaged muscle groups can eventually inhibit opposing muscle groups and your body will "forget" how to perform a specific movement.

Here is a common pelvis pattern in its most severe expression:

Internal rotation with chronic anterior hyper-engagement cause the illia to rotate in opposing directions displacing the pubic symphysis articulation and illeosacral joint. this causes a variety of issues upstream into the spinal column and downstream into the plantar relationship to the earth. This will also give the impression that one leg is shorter than the other, when in fact it is an angular change in how the femur connects to the illeum. This pattern plagues the majority of modern human populations who are accustomed of driving to get around and prolonged sitting for work. Visibly the chronically contracted glutes in the right hip protrude and ball and socket forward, shortening the TFL and locking the external rotation in the right hip. This is where the pinching sensation in the dominant groin area comes from. the joint articulation is already overstretched and in a position that does not allow for further movement. This relationship is often the most important to correct due to downstream effects in nearly every joint used to accomodate this distortion. This imbalance will strain knees, spinal column and ripple out into other peripheral joints and alignment of the entire skeletal system. Here is an image of the fascial web just in posterior pelvis. Imagine this system of lever and pulleys becoming distorted to accomodate the pattern in the previous image. This web is stretched over evey bone in the body. as it accomodated for warped strain, it will distribute that strain and pain can be felt in the neck and shoulders or down into the ankles.

Factors that negatively influence the fascial web:

Hormonal Influences: Hormones modulate fascial properties, often with sex differences:

Estrogen tends to support greater elasticity and influences collagen synthesis (effects can differ between rest and exercise states). Estrogen receptors are present in fascial tissue; fluctuations across the menstrual cycle, pregnancy, or menopause affect stiffness and remodeling. Oral contraceptives may depress collagen synthesis. Cortisol and other glucocorticoids (elevated in stress) can influence fibroblast activity, inflammation, and matrix turnover; exogenous corticosteroids may decrease stiffness. Other hormones (e.g., relaxin, thyroid hormones, catecholamines) also affect connective tissue remodeling and cellular behavior. Have you or someone you know experienced decreased physical performance after strating oral contraceptives? When collagen is lost, much of the springy nature of fascia is minimized, putting workload increasingly into the muscle system. ( this notion will be explored furter below as we dive into the functionality of the fascia web)

Nervous System and Stress:

Fascia is richly innervated (mechanoreceptors, nociceptors, sympathetic fibers), contributing to proprioception, pain, and autonomic regulation. Psychological and physiological stress activates the sympathetic nervous system, releasing catecholamines and cortisol. This can promote myofibroblast differentiation and activity, increasing fascial contractility and stiffness. When animals have a traumatic experience, they vigorously shake to release their tension. Most humans don't have this practice. Some may run and and do physical activity and move the energy out, while others freeze and shut down. It is in the freezing where the trauma sets in and takes hold, the fascia becomes rigid and stiff. Even going for a walk, a swim, a hike would provide the opportunity to release some of this energy. Chronic stress or autonomic dysregulation may sustain densification or pain via neuro-immune interactions. This is why a personal practice of some kind of movement activity is a tremendous investment in your health.

Other Lifestyle and Environmental Factors

Obesity contributes via chronic low-grade inflammation, altered adipose metabolism, reduced mobility, and changes in hyaluronan properties. Temperature, pH, and local biochemical environment affect HA viscosity and tissue mechanics. Nutrition indirectly influences fascia through effects on inflammation, glycation, collagen synthesis precursors, and overall metabolic health. Food related chronic inflammation is one of the greatest challenges humanity faces. Most packaged food-like products are inflammation bombs that cause tremendous damage to the human body. Smoking, excess alcohol, and certain medications can further change connective tissue integrity. Moderation or avoiding these things altogether will give the best fascia integrity.

Fascia continuously remodels in response to these interacting factors. Beneficial adaptations (improved elasticity, gliding, and resilience) generally arise from varied movement, adequate hydration, balanced loading, stress management, and overall healthy physiology. Dysfunction often involves densification, fibrosis, reduced sliding, or altered force transmission, which can contribute to stiffness, pain, and impaired movement. Research continues to clarify precise mechanisms and therapeutic implications, for example targeted exercise, manual therapies, and hydration strategies.

How to train the neuromyofascial web:

What is it specifically that can increase and build up the functionality of the myofascial web? One of the most important is movement that involve bouncing and bounding. Fascial elasticity is stored and returned prior to muscle contraction in these activities and the elasticity and density build us to accommodate the demand ont he body. it is essential to begin with bodyweight exercises that put reasonable tension on the fascia without overstretching and tearing ( creating scaring of fibrosis). One of the main ways that injuries happen are when people decide they want to start working out again after a long period of inactivity and they go back to the weights they used to lift when they were fit. The fascial system takes about 6-24 months to properly fortify itself to meet consistent demand on the tissues. If the demand is increased drastically, this will set you back in very serious ways. the demand has to be slow and steady. using modified bodyweight movements (for example half pushups) and then build to the full movement. never start with full movement plus added weights.

Activities that have a repetitive movement such as running and cycling have a bounding movement that takes advantage of the fascias "superball" type of elasticity. If you have ever seen a very proficient runner, it appears that they are springing and bouncing. This is the function of the Fascia which gets the first half of the movement before the muscles take over to complete it. much of the stretch across a joint is coming from the fascia as a function of its recoil to return the action as stored energy. Runners who train this elastic function will use much less energy than those relying on muscle. They store energy in tensegrity and get it back upon release.

Techniques to physically build fascia:

1. Bouncing is the best way to encourage elasticity. Landing on the ball of the foot transfers the demand through the fascial system rather than collapsing into the heal, knee ,hip bone stack.

2. Countermovement preceding movement. For example flexing down before extending into a jump. Kettlebell swings where the movement winds toward the body before snatching it away.

3. Fascial system responds better to variation rather than repetition. Variability of angle, tempo and load.

4. Whole body movements. Engaging all the links in the chain rather than isolating a single joint and hammering that one group at a time.

5. Proximal initiation and distal extension (ie. beginning your abdominal contraction from the pubic bone rather than from your neck).

I hope this article can assist you in eliminating some of the obstacles and putting some of these tools into action to help strengthen and improve your daily movement routine. Kill your dysfunctional habits and rise anew. In the words of the German poet Goethe, “Unless you are constantly dying and becoming, you are but a shadowy guest on a darkened Earth.” This is true for all of us, but illness and injury makes this truth more urgent.