The myofascial therapy in the form of Fascial Distortion Model (FDM) method is based on the idea that issues within the musculoskeletal system stem from deformations or distortions in the fascia. Once the type of deformation is identified, a specific technique is employed by the physiotherapist using their hands and pressure. FDM identifies six types of fascial distortions that can cause pain and other musculoskeletal issues. These distortions include triggerbands, continuum distortions, cylinder distortions, herniated triggerpoints, tectonic fixations, and folding distortions.

To assessed the thickness of the deep and superficial fascia, ultrasound imaging examination (USG) was performed by qualified physiotherapist. Two measurements were taken, before and seven days after therapy. Philips Affiniti 70G ultrasound device with linear probe (2-15 MHz) was used. To standardize the assessment, ultrasound imaging protocol described by Pirri et al. 2022 was used. To obtain more accurate results, the ultrasound image of the examined tissue was placed in the ImageJ ver. 1.54 software to assess the fascia thickness in millimetres.

To assess the pain level, Visual Analogue Scale (VAS) was used. It is a simple but valuable instrument that measure a level of pain, by range across a continuum of values and cannot easily be directly measured. The scale is a horizontal line, 100 mm in length, anchored by word descriptors at each end, that represent the severity of symptoms from 0 "no symptoms" to 10 "very severe symptoms." The patient marked on the line the point that the patient believed represents his or her perception of his or her current state.

A digital scale was used to assess the patients' body weight. The unit of measurement used in the study was kilograms.