Comparing the effect of high-intensity laser therapy (HILT) and targeted radiofrequency therapy (TRT) on muscle tone in the cervical and thoracic regions. The research aims to determine the effectiveness of the effect of novel physical therapy on the change of muscle tone in the cervical and thoracic region. This is an intervention experiment applied to a group of 60 probands.

Approximately 60 probands, aged 18-60 years, with no gender preference, will be recruited from patients of an unnamed healthcare facility based on their voluntary participation while receiving a current indication for physiotherapy with a diagnosis of CB syndrome.

Subjects will be randomized into three groups. The first probands (n'20) will have HILT applied bilaterally to the mm. scalene, m.levator scapulae and m.trapezius pars descendens. The second group (n'20) will have TRT applied bilaterally to mm. scalene, m.levator scapulae and m.trapezius pars descendens. No physical therapy or physiotherapy will be used for the third group (n'20) for the duration of the study. Subjects will be examined and treated three times a week for a total of 6 times. The effect of each type of therapy will be demonstrated palpationally and subjectively using an analogue pain scale and an algometer. The obtained results will be further statistically processed.

Inclusion Criteria:

• the presence of hypertonus in the mm.scalene, m.levator scapulae and m.trapezius pars descendens bilaterally
• tension demonstrated by palpation and subjective assessment of the patient on an analogue pain scale

Exclusion Criteria:

• Individuals with acute or infectious disease
• probands psychiatric diagnoses
• patients with cancers
• problems with skin integrity disorders
• other contraindications to the use of HILT and TRT