**2. Materials and Methods**

The research was carried out from October 2020 to June 2021 among 300 students of physiotherapy at the Pomeranian Medical University in Szczecin. The study group (P1) consisted of 150 students who reported symptoms of SSDs in the questionnaire. The control group (P2) had the same number of participants without SS symptoms.

Inclusion criteria in the control group were: first, second, or third year students of physiotherapy studying in a hybrid system (stationary and remotely); no symptoms of SS disorders reported in the past; age 20 to 35; consent to participate in the study. Exclusion criteria were: chronic diseases, including psychosomatic diseases; during or after treatment of SS disorders, and pregnancy. The differentiating factor in the inclusion criteria in the P1 and P2 groups was the presence of symptoms of SSDs in the P1 group.
