Juvenile dermatomyositis (JDM) belongs to juvenile idiopathic inflammatory myopathies. It is a rare autoimmune disorder of unknown etiology. It is characterized by vasculopathy occurrence manifested clinically in weakness of proximal muscles of lower and upper extremities, back muscle weakness, and skin lesions on the face, neck and in the joints. Unlike the forms developed in adults, it is characterized by frequent occurrence of calcinosis in musculoskeletal system.
The purpose of this paper is to present diagnostics of functional deficiencies of body position of JDM patients for the need of physiotherapy. Observation of patients free movement and body posture is a crucial element of the JDM functional examination. For the study of dysfunction of motor organ, medical interview has to be supplemented with functional tests that differentiate tone symmetry or tone asymmetry of the muscles involved in the disease process.