The FDM model is a structural way of thinking that interprets the body’s function with a specific emphasis on the fascial network. By addressing each of the six distinctive pathological alterations of the body’s fascial layers, the FDM model works by utilizing an anatomical approach to identify various underlying etiologies based on the locations of symptoms and how they can impact the musculoskeletal system. Some common acute injuries treated with this model include sprained ankles, heel spurs, tendonitis, and plantar fasciitis.
To remember the six distortions, think of the mnemonic "Tired Children Hate Folding Clothes Tonight." The first letter of each word will help you recall trigger bands, cylindrical distortions, herniated trigger points, folding distortions, continuum distortions, and tectonic fixations.
Trigger Bands are the most common fascial distortion and are caused by the wrinkling of linear-arranged fascia or from tugging along the path of the fascial band. This distortion is typically due to repetitive injuries and results in burning and pulling pain.
Cylindrical Distortions are loops of fascia that arise in non-jointed areas from simultaneous twisting and rotational forces. These result in wacky symptoms, including tingling, numbness, and migratory pain that constantly changes location.
Herniated Trigger Points are pathological herniations of tissue that break between a fascial plane and result in deep, achy, localized, symptomatic pain.
Folding Distortions result when the fascia around a joint is constantly pulled and pushed, resulting in a decreased ability of the fascia to mold and preserve its original form. This distortion is similar to the repetitive folding and unfolding of a car road map that fails to revert to its original orientation.
Continuum Distortions arise at the transition point between bone and its neighboring fascia, ligaments, or tendons and occur when they lose their capacity to respond to external stimuli. This distortion results in pain localized to one single spot and can result in joint sprains or even bone spur formation.
Tectonic Fixations are physiological rearrangements of overlapping fascia that cause it to become stiff and fixated to one location. This distortion results in decreased glide and range of motion.
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