Introduction:
During an education at ballet school the musculoskeletal system is exposed to high levels of physical stress. The bodies of children and adolescents throughout the period of dance education are exposed to frequent stretching and an increasing range of motion in the joints beyond their physical norm. Pain constitutes an integral part of dance education and dancer's profession.

Aim:
The aim of the study was to verify whether the type of the school profile, region of the spine and the direction of the movement influence the incidence of weak link.

Material and methods:
346 subjects took part in the study, all of them students of three types of ballet schools – among them 293 females and 53 males. Prior to the study the following research hypothesis was formed: among the children and adolescents enrolled into the study there are no weak links in musculoskeletal system in the cervical, thoracic and lumbar region of the spine.

Results and discussion:
Among 346 subjects on the day of the study 39 (11.27%) reported pain in cervical region, 55 (15.90%) in thoracic region, and 184 (53.18%) in lumbar region.

Conclusions:
(1) Among the children and adolescents were weak links in their cervical, thoracic and lumbar region of the spine. (2) School type does not have a significant impact on the occurrence of weak links in musculoskeletal system while region of the spine and the direction of movement have a substantive influence on weak links occurrence.