Thermal monitoring of the trapezius and levator scapulae muscles during dry needling and ischemic compression in myofascial pain syndrome
The research was conducted in the Thermography Laboratory (LABTERM) of the Federal University of Paraíba (UFPB) - Campus I, which is located in the Health Sciences Centre (CCS). Type of study This is a randomized controlled clinical study with parallel groups (HOCHMAN et al., 2005), which was carried out with subjects suffering from Myofascial Pain Syndrome with involvement of the upper trapezius and lift scapulae muscles. Their recruitment was done through social media, posters and folders that were distributed throughout the university campus. The subjects participating in this study were informed about the risks and experimental procedures and signed a Free and Informed Consent Form, agreeing to their participation in the project, as recommended by the Ethics Committee on Research in Human Beings of the UFPB, according to resolution 466/12 of the National Health Council (CNS). Having the research was approved under the consubstantiated opinion of the Ethics and Research Committee of the Health Sciences Center of the Federal University of Paraíba - CCS/UFPB number 55859522.8.0000.5188, as well as being registered in the Brazilian Registry of Clinical Trials (ReBEQ) with number RBR-22x4mp. Characterization of the sample To calculate the sample a priori the statistical software G-Power 3.1 was used, considering the comparison of two independent groups (F test) with 11 repeated measures and maximum sampling error of 5% with effect size (Effectsize) equal to 0.25 power (power of the test) of 90%, correction of non-sphericity of 1 and correlation between the repeated measures of 0.5. The subjects were randomly assigned to compose G1, submitted to dry needling (n=16) and G2 submitted to ischemic compression (n=16) with the help of the randomization.com site. The total "n" calculated was 32. Thus, 32 subjects were included, of both genders, aged between 18 and 40 years, with BMI ≤ 30 Kg/m2 (table 1), carriers of at least one active hypersensitive PT in the trapezius and scapular levator muscles, with pain on palpation ≥ 3 on the VAS scale, non-smokers, who were not carriers of cardiovascular, infectious, dermatological and degenerative diseases that interfere with body temperature or analgesic drugs that could alter body thermogenesis.