Validation of clinical tests used in physiotherapy diagnostics

INTERVENTION: The study is conducted as a prospective clinical research program including interventional and observational components in the field of myofascial physiotherapy. Adult participants with non‐specific neck pain and shoulder dysfunction are recruited from physiotherapy clinics after eligibility assessment and informed consent. In the interventional part of the study, participants are randomly allocated in a 1:1 ratio to either a targeted myofascial physiotherapy group or a standard physiotherapy group. Randomization is performed using a computer‐generated block randomization procedure with allocation concealment. Outcome assessors and data analysts remain blinded to group allocation. The experimental group receives targeted myofascial physiotherapy based on standardized clinical assessment and identification of dominant myofascial dysfunctions. Interventions include ischemic compression, myofascial release techniques, transverse friction massage, post‐isometric relaxation, trigger point therapy, movement control exercises, deep cervical flexor activation, scapular stabilization exercises, stretching, and individualized home exercise programs. The control group receives standard physiotherapy consisting of general massage techniques and non‐specific exercise therapy. Treatment includes classical massage, active neck movements, isometric exercises, and general stretching exercises. The same exercise protocol is used for all participants in the control group. Both groups participate in si Xtreatment sessions performed twice weekly over a period of 3 weeks. Each session lasts approximately 45 minutes. In the observational and diagnostic components of the study, participants undergo standardized physiotherapy examination including medical interview, pain assessment, range CONDITION: Non‐specific neck pain, myofascial pain syndrome, shoulder pain and movement dysfunction, musculoskeletal disorders treated in physiotherapy ; Musculoskeletal Diseases SECONDARY OUTCOME: 1. Cervical range of motion measured using an electronic or mechanical inclinometer in flexion, extension, lateral flexion, and rotation at baseline (T0), immediately after completion of therapy (T1), and 2 weeks after intervention completion (T3); 2. Biomechanical properties of myofascial tissues, including muscle tone, stiffness, and elasticity, measured using MyotonPRO at standardized points in the neck region at baseline (T0), immediately after completion of therapy (T1), and 2 weeks after intervention completion (T3); 3. Skin microcirculation measured using laser Doppler flowmetry with the PeriFlu XSystem 5000 at standardized points in the neck region at baseline (T0), immediately after completion of therapy (T1), and 2 weeks after intervention completion (T3); 4. Global perceived change measured using the Global Rating of Change Scale (GROC) immediately after completion of therapy (T1) and 2 weeks after intervention completion (T3); 5. Patient satisfaction measured using a Patient Satisfaction Scale immediately after completion of therapy (T1); 6. Shoulder soft tissue and rotator cuff assessment measured using ultrasound examination with the SonoScape P20 ultrasound system in patients with suspected frozen shoulder during diagnostic assessment; 7. Adherence to the intervention measured by attendance rate, completion of at least 80% of planned sessions, and duration of therapeutic sessions throughout the intervention period; 8. Safety and tolerability measured by the number, type, severity, and timing of adverse events recorded throughout the study period INCLUSION CRITERIA: 1. Adults aged 18–60 years 2. Non‐specific neck pain lasting from 1 month to 6 months 3. Presence of myofascial symptoms confirmed during physiotherapy examination 4. Pain intensity =4 on the Numeric Rating Scale (NRS) 5. Ability to participate in physiotherapy procedures and assessments 6. Signed informed consent