Myopraktikk (NO): A Narrative Review and Conceptual Hypothesis on Intrafasciomembranal Fluid Pressure, Biotensegrity, and Immediate Remote Myofascial Responses.

This article introduces Myopraktikk (NO), a Norwegian-developed manual treatment method, where we clinically observe by palpation and visual inspection immediate local and remote responses that form the basis for a new hypothesis uniting intrafasciomembranal fluid pressure (IFMFP), Myopraktikk treatment chains, and the principle of biotensegrity in a single framework. Here, IFMFP refers to fluid pressure within fascial compartments, treatment chains describe functional pathways of force and tension that appear to respond collectively to local input, and biotensegrity denotes mechanical balance in an interconnected network. Muscle pain and myalgias are among the most common causes of pain and functional impairment, yet current models remain fragmented and leave major gaps. Why does nonspecific pain and stiffness arise without structural findings? Why do muscles feel "tight" at rest, and why do some tensions resolve quickly while others persist? What are muscle knots, trigger points (TrP), and fascial restrictions in regional pain conditions, and how might they connect to fibromyalgia (FM), overtraining syndrome (OTS), myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), post-traumatic stress disorder (PTSD), or even everyday complaints such as morning stiffness and weather-related pain? The IFMFP model postulates fluid accumulation and pressure rise within fascial spaces surrounding muscle fibers, bundles, and whole muscles, driven by overuse and impaired drainage, and conceptually comparable to intramuscular compartment pressure. This pressure alone might shorten and thicken tissue, and induce venous stasis, hypoxia, pH reduction, hyaluronan (HA) modification, and altered membrane permeability. Unlike traditional theories that see HA changes as causal, the IFMFP model proposes the reverse: pressure drives HA alterations and densification, enabling chronic dysfunction. A key clinical observation is that, by palpation and visual inspection, knots, TrP, tensions, and fascial cords are often felt to diminish during treatment, both locally and remotely, with patients and practitioners reporting perceived immediate changes in asymmetry, tonus, and stiffness. These findings suggest such structures are not static lesions but dynamic fluid pockets of increased IFMFP, dissolving as pressure is released. Based on clinical observations, the Myopraktikk treatment chains reveal patterns of movement, force, and tension, where local interventions may influence the entire chain through systemic equalization, in line with biotensegrity. By integrating biomechanical, physiological, and psychosocial factors, IFMFP offers a unifying mechanism that may link diverse myalgias within an expanded framework of myofascial pain syndrome. Myopraktikk therefore challenges established assumptions both as a treatment method and as a conceptual framework, where immediate, systemic, and reversible changes in myofascial tension, amplified by the physical expression of stress and thought, provide a fresh understanding of myalgias.