Correct posture is the basis for normal development and function of chest box, extremities and internal organs. Irregular posture is one of the most widespread disorders of musculoskeletal system, which might be caused by the low level of culture and lack of education. It has an influence on children‘s health, physical and psychological well-being. Lack of assessment and delay of treatment might worsen situation and progress into complicated forms of disorders. Aim of the work: to evaluate posture of 11–12 years old children in sagittal and frontal planes and effects of physical therapy. Contingent: 96 11–12 years old children were participated in the first assessment: 59 girls and 37 boys. 64 children were participated in the second assessment: 33 girls and 31 boys. Methods: inspection, palpation, cirtometry, scoliometry, SPSS software. Results: Distribution of curves of column in frontal and sagittal planes after physical therapy were the same among boys and girls as well as children of 1’st and 2’nd group. Analyzing data of first and second assessments we can say, that physical therapy had no influence on boy’s kyphosis and lordosis, but it had a statistically significant positive effects on girl’s parameters of kyphosis and lordosis. Conclusions: posture disorders in frontal and sagittal planes are still widespread among schoolchildren. Physical therapy is very important for the correction of schoolchildren’s posture. Special physical exercises had to be used under... [to full text]